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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 99609. Отображено 100.
05-01-2012 дата публикации

System and method for multi-dimensional encoding and decoding

Номер: US20120001778A1
Автор: Avi STEINER, Avigdor Segal, Eli Sterin, Erez Sabbag, Ilan Bar
Принадлежит: Individual

A system and method for decoding multi-dimensional encoded data. A set of multi-dimensional encoded data may be received encoding each input bit in a set of input bits by multiple different component codes in multiple different encoding dimensions. The multi-dimensional data may potentially have errors. A map may be used to locate each set of intersection bits that encode the same input bit by multiple unsolved component codes. The unsolved component codes may be decoded using one or a plurality of tested error correction hypotheses that yields a decoding success, where each hypothesis correcting a different set of intersection bits for a different input bit. The successful hypothesis may be applied for correcting the multi-dimensional encoded data.

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Номер записи: 1
05-01-2012 дата публикации

Block-based incremental backup

Номер: US20120005163A1
Автор: Mark J. Maybee, Matthew A. Ahrens
Принадлежит: Oracle America Inc

A method for backing up a file system, including obtaining a first indirect block comprising a first block pointer, obtaining a first birth time from the first block pointer, determining whether the first birth time is subsequent to a time of a last backup, and backing up a first block referenced by the first block pointer, if the first birth time is subsequent to the time of the last backup.

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Номер записи: 2
05-01-2012 дата публикации

Using distributed queues in an overlay network

Номер: US20120005254A1
Автор: David A. Wortendyke, John Reed Riley, Michael J. Marucheck
Принадлежит: Microsoft Corp

The present invention extends to methods, systems, and computer program products for using distributed queues in an overlay network. Embodiments of the invention can be used to replicate queue state (e.g., inserted and/or deleted messages) within an overlay network and can be used to continue a process at a different node within the overlay network based on replicated queue state. Accordingly, embodiments of the invention can be used to increase the availability of queue state, compensate for node failures within an overlay network, and promote replication of consistent queue state between nodes within an overlay network.

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Номер записи: 3
05-01-2012 дата публикации

Apparatus for reallocating logical to physical disk devices using a storage controller and method of the same

Номер: US20120005447A1
Автор: Akira Yamamoto, Takao Satoh, Yasutomo Yamamoto
Принадлежит: HITACHI LTD

A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.

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Номер записи: 4
05-01-2012 дата публикации

System and method for supporting compensation work using a process execution engine

Номер: US20120005529A1
Автор: Alexandre de Castro Alves
Принадлежит: Oracle International Corp

A system and method can support a compensation work. The system includes one or more compensation functions that use a process state to realize the compensation work associated with a forward work, wherein the compensation work is executed at a different runtime from an execution time of the forward work, and wherein the process state contains data needed to execute the compensation work. The system also includes a process execution engine that can dynamically manage process state to make the state available to the compensation functions. The process state is retrieved based on a closure data structure that holds an expression and an environment of variable bindings, in which the expression is to be evaluated.

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Номер записи: 5
05-01-2012 дата публикации

System and Method for Communication Between Concurrent Transactions Using Transaction Communicator Objects

Номер: US20120005530A1
Автор: Victor M. Luchangco, Virendra J. Marathe
Принадлежит: Oracle International Corp

Transactional memory implementations may be extended to include special transaction communicator objects through which concurrent transactions can communicate. Changes by a first transaction to a communicator may be visible to concurrent transactions before the first transaction commits. Although isolation of transactions may be compromised by such communication, the effects of this compromise may be limited by tracking dependencies among transactions, and preventing any transaction from committing unless every transaction whose changes it has observed also commits. For example, mutually dependent or cyclically dependent transactions may commit or abort together. Transactions that do not communicate with each other may remain isolated. The system may provide a communicator-isolating transaction that ensures isolation even for accesses to communicators, which may be implemented using nesting transactions. True (e.g., read-after-write) dependencies, ordering (e.g., write-after-write) dependencies, and/or anti-dependencies (e.g., write-after-read dependencies) may be tracked, and a resulting dependency graph may be perused by the commit protocol.

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Номер записи: 6
05-01-2012 дата публикации

System and method for data recovery in multi-level cell memories

Номер: US20120005558A1
Автор: Avi STEINER, Avigdor Segal, Erez Sabbag, Hanan Weingarten, Michael KATZ, Ofir Avraham Kanter
Принадлежит: Individual

A system and method are provided for data recovery in a multi-level cell memory device. One or more bits may be programmed sequentially in one or more respective levels of multi-level cells in the memory device. An interruption of programming a subsequent bit in a subsequent second or greater level of the multi-level cells may be detected. Data may be recovered from the multi-level cells defining the one or more bits programmed preceding the programming interruption of the second or greater level.

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Номер записи: 7
12-01-2012 дата публикации

Match server for a financial exchange having fault tolerant operation

Номер: US20120011391A1
Автор: Barry L. Galster, Enrico Ferrari, Paul Andrew Bauerschmidt, Paul J. Callaway, Robert C. Hagemann, Iii, Troy Reece, Zuber Shethwala
Принадлежит: Chicago Mercantile Exchange Inc

Fault tolerant operation is disclosed for a primary match server of a financial exchange using an active copy-cat instance that mirrors operations in the primary match server, but only after those operations have successfully completed in the primary match server. Fault tolerant logic monitors inputs and outputs of the primary match server and gates those inputs to the backup match server once a given input has been processed. The outputs of the backup match server are then compared with the outputs of the primary match server to ensure correct operation. The disclosed embodiments further relate to fault tolerant failover mechanism allowing the backup match server to take over for the primary match server in a fault situation wherein the primary and backup match servers are loosely coupled. As such, the primary match server need not be specifically designed or programmed to interact with the fault tolerant mechanisms.

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Номер записи: 8
12-01-2012 дата публикации

Graphical user interface system for background intelligent transfer service

Номер: US20120011408A1
Автор: Kumar Swamy, Raghavendra Marutirao Banappanavar, Seshadri Rajamannar, Swetha Bharathraj Shetty
Принадлежит: Unisys Corp

A graphical user interface system for BITS. The system includes a set of input modules, a set of output modules, and notification modules. The set of input modules allow selection of files for transfer to the BITS Server Virtual Directory and activate BITS functions. The BITS functions may include starting file transfer, cancelling file transfer, retrying file transfer, or removing the selected files. The set of output modules show dynamic status and real-time progress of the transfer automatically upon activation of the transfer of the selected files. The set of output modules also display an error message upon detecting an error in the transfer. Further, the notification modules provide a real-time notification on completion of the transfer.

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Номер записи: 9
26-01-2012 дата публикации

Initialization protocol for a peer-to-peer replication environment

Номер: US20120023066A1
Автор: Serge Bourbonnais, Somil Kulkarni, Yat O. Lau
Принадлежит: International Business Machines Corp

Techniques for initializing a connection in a peer-to-peer database replication environment. A message is received from an initiator node, indicating that the initiator node will begin replicating changes made to a particular data entity. One or more replicated changes relating to the database entity are received from the initiator node. If an updated instance of the data entity does not currently exist on a target node then one or more load operations are performed to create the updated instance. The stored replicated changes may then be processed against the updated instance of the database entity.

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Номер записи: 10
26-01-2012 дата публикации

Methods of multi-server application synchronization without stopping i/o

Номер: US20120023068A1
Автор: Eran Raichstein, Gregory John Tevis, Ofer Elrom
Принадлежит: International Business Machines Corp

A method according to one embodiment includes receiving a request to perform a backup of data associated with an application running on multiple servers; communicating with I/O Handlers on the servers for initiating a coordinated backup operation on the data at about a same start time; and instructing the I/O Handlers to stretch communication between instances of the application and data storage volumes associated therewith during initiating the backup operation. Additional systems, methods, and computer program products are also disclosed.

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Номер записи: 11
26-01-2012 дата публикации

Backing up and recovering a database

Номер: US20120023069A1
Автор: Kenji Seta, Soh Kaijima, Takashi Saitoh
Принадлежит: International Business Machines Corp

Methods and apparatus, including computer program products, implementing and using techniques for recovering a database, distributed in two or more storage devices, based on a backup of each storage device. The backup of each storage device is acquired. In association with the backup for each storage device, a quiesce point indication is acquired. The quiesce point indication indicates backed up data of each storage device. The backed up data is based on a quiesce point. For each storage device, a recovery process is selected. For each storage device, in response to the selected recovery process being a collective copying process, recovering contents of each storage device is done by collective copying. In response to the selected recovery process being to recover based on the quiesce point indication, the contents of each storage device is recovered based on the indicated backed up data of the quiesce point indication.

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Номер записи: 12
26-01-2012 дата публикации

Rejuvenation processing device, rejuvenation processing system, computer program, and data processing method

Номер: US20120023495A1
Автор: Fumio Machida
Принадлежит: NEC Corp

In a rejuvenation processing device ( 1 ), at least one host machine ( 3 ) is selected as an object to be rejuvenated from among each of the host machines ( 3 ). At least one virtual machine ( 302 ) is selected from among the virtual machines ( 302 ) operating in the host machine ( 3 ) which is not selected as an object to be rejuvenated. The operation of the selected virtual machine ( 302 ) is stopped, and the virtual machine ( 302 ) operating in the host machine ( 3 ) selected as the object to be rejuvenated is migrated to the host machine ( 3 ) in which the virtual machine ( 302 ) operates. The host machine ( 3 ) selected as the object to be rejuvenated is rejuvenated. Thereby, it is possible to provide a rejuvenation processing device capable of simultaneously rejuvenating the host machines and the virtual machines necessary to be rejuvenated, while continuously operating the host machines and the virtual machines which are not necessary to be rejuvenated.

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Номер записи: 13
26-01-2012 дата публикации

Maintaining Data States Upon Forced Exit

Номер: US20120023506A1
Автор: Christopher Crim, Clay Maeckel
Принадлежит: Apple Inc

Methods, program products, and systems of maintaining data states upon forced exit are disclosed. In one aspect, an application program executing on the mobile device can maintain a connection to a remote data store and retrieve and cache data from the data store. When the mobile device receives an event that forces the application program to terminate, the mobile device can provide a time window in which the mobile device can perform various state preservation actions. During the time window, the mobile device can store data states, including states of the connection and states of the cached data. When the application program is re-launched, the mobile device can use the stored data states to restore a connection and a displayed view.

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Номер записи: 14
02-02-2012 дата публикации

Distributed snapshot process

Номер: US20120030174A1
Автор: G. Paul Koning, Hsin H. Lee, Lazarus J. Vekiarides, Paula Long, Peter C. Hayden, Satyanarayana R. Goluguri, Vasudevan Subramanian
Принадлежит: Individual

Systems and methods for providing an efficient partitioned resource server are disclosed. The partitioned resource server includes a plurality of individual servers, and the individual servers support a storage service. The systems and methods provide archiving processes for partitioned resources. To this end, the systems and process include a snapshot process operating on a server and capable of coordinating with other snapshot processes operating on the other servers for generating state information representative of the state of the partitioned resources.

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Номер записи: 15
02-02-2012 дата публикации

Tenant rescue for software change processes in multi-tenant architectures

Номер: US20120030502A1
Автор: Andreas Willi Rueegg, Joerg Schmidt, Karolin Laicher, Michael Segler
Принадлежит: Individual

A multi-tenant system can be switched to a downtime state to implement a transition from a current state to a target state of a core software platform. During a second phase of the transition an error associated with tenant-specific content of a first customer tenant of the plurality of customer tenants of the multi-tenant system can be identified. The second phase can be suspended for the first customer tenant while continuing the second phase for a remainder of the plurality of customer tenants for which an error has not been identified. After a scheduled duration of the downtime state, the multi-tenant system can be reactivated such that the multi-tenant system includes the remainder of the plurality of customer tenants with the transition implemented and the first customer tenant either with the transition implemented if the error has been corrected or without the transition implemented if the error has not been corrected.

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Номер записи: 16
02-02-2012 дата публикации

Deterministic data verification in storage controller

Номер: US20120030530A1
Автор: Adi GOLDFARB, Yair Chuchem, Zohar ZILBERMAN
Принадлежит: International Business Machines Corp

Exemplary method, system, and computer program embodiments for performing deterministic data verification by a storage controller are provided. Each of a plurality of concurrent write tasks is configured to be placed in a plurality of overlapping data storage ranges by performing at least one of: implementing a data generation function for generating pseudo-random data using a data seed, and generating a range map, the range map utilized as a lookup data structure to verify a chronological order for performing the plurality of concurrent write tasks, wherein a data address space is first designated in the range map as undetermined. Each of a plurality of read tasks is analyzed by comparing data read from a sub range in the plurality of overlapping data storage ranges against the data seed associated with the sub range.

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Номер записи: 17
09-02-2012 дата публикации

Rule based aggregation of files and transactions in a switched file system

Номер: US20120036107A1
Автор: Peter Nickolov, Vladimir Miloushev
Принадлежит: F5 Networks Inc

A switched file system, also termed a file switch, is logically positioned between client computers and file servers in a computer network. The file switch distributes user files among multiple file servers using aggregated file, transaction and directory mechanisms. The file switch distributes and aggregates the client data files in accordance with a predetermined set of aggregation rules. Each rule can be modified independently of the other rules. Different aggregation rules can be used for different types of files, thereby adapting the characteristics of the switched file system to the intended use and to the expected or historical access patterns for different data files.

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Номер записи: 18
09-02-2012 дата публикации

Performing deduplication of input data at plural levels

Номер: US20120036113A1
Автор: Mark David Lillibridge, Sean Michael Beary
Принадлежит: Hewlett Packard Development Co LP

Deduplication of input data is performed at a first level, where the deduplication at the first level avoids storing an additional copy of at least one of the chunks in a data store. Additional deduplication of the deduplicated input data is performed, wherein the additional deduplication further reduces duplication.

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Номер записи: 19
09-02-2012 дата публикации

Coordinated garbage collection for raid array of solid state disks

Номер: US20120036309A1
Автор: David A. Dillow, Feiyi Wang, Galen M. Shipman, Hakki S. Oral, Youngjae Kim
Принадлежит: UT Battelle LLC

An optimized redundant array of solid state devices may include an array of one or more optimized solid-state devices and a controller coupled to the solid-state devices for managing the solid-state devices. The controller may be configured to globally coordinate the garbage collection activities of each of said optimized solid-state devices, for instance, to minimize the degraded performance time and increase the optimal performance time of the entire array of devices.

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Номер записи: 20
16-02-2012 дата публикации

Memory systems and memory modules

Номер: US20120042204A1
Автор: Michael John Sebastian Smith, Suresh Natarajan Rajan
Принадлежит: Google LLC

One embodiment of the present invention sets forth a memory module that includes at least one memory chip, and an intelligent chip coupled to the at least one memory chip and a memory controller, where the intelligent chip is configured to implement at least a part of a RAS feature. The disclosed architecture allows one or more RAS features to be implemented locally to the memory module using one or more intelligent register chips, one or more intelligent buffer chips, or some combination thereof. Such an approach not only increases the effectiveness of certain RAS features that were available in prior art systems, but also enables the implementation of certain RAS features that were not available in prior art systems.

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Номер записи: 21
16-02-2012 дата публикации

Saving operational state of open applications when unexpected shutdown events occur

Номер: US20120042206A1
Автор: Daniela Di Domenico, Viviana Tripodi
Принадлежит: International Business Machines Corp

A method, system, and computer program product for saving the state of at least one open application on a data processing system when an event forces open applications to close. The method preferably includes a step of monitoring data processing system activities to detect an event indicative of a forthcoming system shutdown action, the system shutdown action including a command which forces closing of running applications. Responsive to detecting the event, execution of said shutdown action is suspended and the state of the at least one open application is recorded. An indication that a state of the at least one running application has been recorded for reuse is stored and, following the recording and storing steps, execution of said shutdown action is restored.

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Номер записи: 22
23-02-2012 дата публикации

System and Method for Automatic Data Defragmentation When Restoring a Disk

Номер: US20120047110A1
Автор: Jeffrey Brunet, Yousuf Chowdhary, Zelik Levit
Принадлежит: Storage Appliance Corp

A method is described to restore backed-up data to a data source such that the data are automatically defragmented. Defragmentation is accomplished during the restore operation by identifying data blocks belonging to discrete data files and copying those data blocks to the target data source such that all data blocks for any given file are written to contiguous sectors on the target data source.

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Номер записи: 23
23-02-2012 дата публикации

Redundant array of independent clouds

Номер: US20120047339A1
Автор: Allen Samuels, Dan Decasper, Jonathan Stone
Принадлежит: CIRTAS SYSTEMS Inc

A computing device executing a reliable cloud storage module divides data into a first data block and a second data block. The computing device stores the first data block in a first storage cloud provided by a first storage service, and stores the second data block in a second storage cloud provided by a second storage service. The computing device thereafter receives a command to read the data. In response, the computing device retrieves the first data block from the first storage cloud and the second data block from the second storage cloud. The computing device then reproduces the original data from the first data block and the second data block.

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Номер записи: 24
23-02-2012 дата публикации

Data recovery apparatus and data recovery method

Номер: US20120047341A1
Автор: Yuunosuke Ishinabe, Yuzuru Ueda
Принадлежит: Fujitsu Ltd

A data recovery apparatus includes accepting unit configure to accept an instruction to recover data in a first storage device, generating unit configure to generate difference information describing differences between backup data backed up from the first storage device to a second storage device and data stored in the first storage device at the point in time when the data recovery instruction has been received by the accepting unit; and updating unit configure to update data stored in the first storage device on the basis of the difference information generated by the generating unit and the backup data.

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Номер записи: 25
01-03-2012 дата публикации

Object File System

Номер: US20120054252A1
Автор: Craig Robertson, Dan Olster, Dave Fellinger, Doug Schafer, Jan Olderdissen
Принадлежит: Individual

An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program. An object identifier and object data may be stored in a database.

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Номер записи: 26
01-03-2012 дата публикации

Memory device and operating method thereof

Номер: US20120054419A1
Автор: CHEN Xiu, LIANG Chen
Принадлежит: Via Technologies Inc

The invention provides a memory device. In one embodiment, the memory device comprises a flash memory, a memory, and a controller. The flash memory comprises a plurality of blocks for data storage. The memory stores an address mapping table recording relationships between logical addresses and physical addresses of the blocks therein. The controller divides the address mapping table stored in the memory to a plurality of mapping table units, updates relationships between the logical addresses and the physical addresses stored in the mapping table units, determines whether data access performed to the flash memory fulfills the conditions of a first specific requirement, and when the data access fulfills the conditions of the first requirement, the controller selects a target mapping table unit from the mapping table units, and stores the target mapping table unit and a corresponding time stamp as a mapping table unit data to the flash memory.

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Номер записи: 27
01-03-2012 дата публикации

Method and system for placement of data on a storage device

Номер: US20120054433A1
Автор: George J. Scholhamer, III, Ryan A. Callison, William C. Galloway
Принадлежит: Pivot3 Inc

Embodiments of systems and methods for a storage system are disclosed. More particularly, in certain embodiments locations of storage devices may be allocated to store data when commands pertaining to that data are received. Specifically, in one embodiment a distributed RAID system comprising a set of data banks may be provided where the different performance characteristics associated with different areas of disks in the data bank may be taken into account when allocating physical segments to corresponding logical segments of a volume by allocating certain physical segments to a particular logical segment based upon a location of the physical segment or criteria associated with the logical segment.

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Номер записи: 28
01-03-2012 дата публикации

Data processing device, non-transitory computer readable medium and method for controlling data processing device

Номер: US20120054457A1
Автор: Koutarou Sasage
Принадлежит: Fujitsu Ltd

A data processing device has a processing unit configured to copy data stored in a first memory unit into a second memory unit on a block-by-block basis into which the data is divided by a specific size, a time measuring unit configured to measure an amount of time that the processing unit spends on copying the block and a controller configured to change the size of the block to a size smaller than the current size if the measured amount of time runs up to a specific threshold which is shorter than a timeout time.

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Номер записи: 29
01-03-2012 дата публикации

method and system for acquiring a quiesceing set of information associated with a virtual machine

Номер: US20120054458A1
Автор: Bich Le, Christian CZEZATKE, Greg Hutchins, Mallik Mahalingam, Satyam B. Vaghani, Shaw Chuang
Принадлежит: VMware LLC

A method and system for acquiring a quiesceing set of information associated with a virtual machine. A virtual machine is cloned. The cloned virtual machine has an associated persistent storage device. The state of the persistent storage device is transformed into a quiesced state of the cloned virtual machine by utilizing a shut-down process. The shut-down process is executed on the cloned virtual machine to quiesce the cloned virtual machine and the quiesceing set of information of the cloned virtual machine is automatically reduced to information stored on the persistent storage device.

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Номер записи: 30
01-03-2012 дата публикации

Method and system for booting and automatically updating software, and recovering from update error, and computer readable recording medium storing method

Номер: US20120054475A1
Автор: Jong-Suk Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided are a booting method of updating software components installed in a system and recovering from an error that occurs in an update, a method and system for automatically updating the software and recovering from the error, and a computer readable recording medium storing the method. The master boot record and the backup boot record are used to stably update a kernel and effectively recover from an update error. The component configuration database is used to update a plurality of software components including a kernel in a transaction, and perfectly recover from an update error.

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Номер записи: 31
01-03-2012 дата публикации

System and method for automated unattended recovery for remotely deployed intelligent communication devices

Номер: US20120054540A1
Автор: Edward G. Howard, Thomas H. Cobbs
Принадлежит: SmartSynch Inc

In one embodiment, an intelligent communications device for operating in a network is disclosed. The device includes a storage device having a plurality of partitions storing images for performing boot operations. The device also includes a detection module that is operative to detect a boot failure, and a first restoration module that is operative to restore an active image with a first backup image, in response to a detected boot failure from an active image. The device further includes a second restoration module that is operative to restore a second backup image in response to a detected boot failure after restoration from a first backup image. The device also includes a programmable processor that is programmed to cause execution of boot operations and functions performed by the detection module, first restoration module, and second restoration module.

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Номер записи: 32
01-03-2012 дата публикации

Partial memory mirroring and error containment

Номер: US20120054543A1
Автор: Roland Dreier
Принадлежит: Cisco Technology Inc

In one embodiment, an apparatus includes memory comprising a first portion in which data contained therein is mirrored and a second portion wherein data contained therein is not mirrored, a memory allocator for allocating the first portion of the memory to critical data and allocating the second portion of the memory to non-critical data, and a processor for mirroring the critical data and receiving an indication of a memory error. If the memory error occurs in the first portion of the memory, a mirrored copy of the critical data is used. If the memory error occurs in the second portion of the memory, the memory error is contained so that the apparatus can continue to operate programs using the memory not affected by the memory error.

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Номер записи: 33
08-03-2012 дата публикации

Predictive synchronization for clustered devices

Номер: US20120057591A1
Автор: Amir Erman, Amnon PERLMUTTER, Ben Zion Weissman
Принадлежит: Check Point Software Technologies Ltd

A method and system is provided for a scalable clustered system. The method and system may handle asynchronous traffic as well as session backup. In the method and system, a home cluster member having ownership of a local session predicts designation of a an other cluster member to receive a packet associated with the local session and sends appropriate state information or forwarding instruction to the other network member.

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Номер записи: 34
08-03-2012 дата публикации

Recovering a system that has experienced a fault

Номер: US20120060048A1
Автор: Raymond W. Thorn, Scott A. Cluff
Принадлежит: Individual

A method and system of recovering a system that has experienced a fault includes a backup device to enable access of a network through the interface in response to the fault. The system includes a main operational portion that controls operation of the system under normal conditions. However, if a fault occurs, then the backup device can be selected to take over control of the system so that data can be retrieved from a backup storage to recover the system. The backup device includes software and/or hardware components to enable the system to access a network even though the main operational portion may not be functioning properly.

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Номер записи: 35
08-03-2012 дата публикации

Semiconductor memory device with error correction

Номер: US20120060066A1
Автор: Daisaburo Takashima, Kosuke Hatsuda, Yasushi Nagadomi
Принадлежит: Toshiba Corp

This disclosure concerns a memory including: a first memory region including memory groups including a plurality of memory cells, addresses being respectively allocated for the memory groups, the memory groups respectively being units of data erase operations; a second memory region temporarily storing therein data read from the first memory region or temporarily storing therein data to be written to the first memory region; a read counter storing therein a data read count for each memory group; an error-correcting circuit calculating an error bit count of the read data; and a controller performing a refresh operation, in which the read data stored in one of the memory groups is temporarily stored in the second memory region and is written back the read data to the same memory group, when the error bit count exceeds a first threshold or when the data read count exceeds a second threshold.

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Номер записи: 36
08-03-2012 дата публикации

Decoder based data recovery

Номер: US20120060074A1
Автор: Engling Yeo
Принадлежит: MARVELL WORLD TRADE LTD

Systems, methods, and other embodiments associated with decoder based data recovery are described. According to one embodiment, an apparatus includes a decoder configured to perform a decoding process on codewords to verify that the codewords meet coding constraints. The decoder includes a recovery unit configured to store recovery instructions for performing a modified decoding process. The recovery unit is further configured to execute the stored recovery instructions when a decoded codeword fails to meet the coding constraints.

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Номер записи: 37
15-03-2012 дата публикации

Apparatus, system, and method for managing lifetime of a storage device

Номер: US20120066439A1
Автор: Jeremy Fillingim
Принадлежит: Fusion IO LLC

An apparatus, system, and method are disclosed for managing lifetime for a data storage device. A target module determines a write bandwidth target for a data storage device. An audit module monitors write bandwidth of the data storage device relative to the write bandwidth target. A throttle module adjusts execution of one or more write operations on the data storage device in response to the write bandwidth of the data storage device failing to satisfy the write bandwidth target.

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Номер записи: 38
15-03-2012 дата публикации

Systems and methods for averaging error rates in non-volatile devices and storage systems

Номер: US20120066441A1
Автор: Hanan Weingarten
Принадлежит: Densbits Technologies Ltd

A system for storing a plurality of logical pages in a set of at least one flash device, each flash device including a set of at least one erase block, the system comprising apparatus for distributing at least one of the plurality of logical pages over substantially all of the erase blocks in substantially all of the flash devices, thereby to define, for at least one logical page, a sequence of pagelets thereof together including all information on the logical page and each being stored within a different erase block in the set of erase blocks; and apparatus for reading each individual page from among the plurality of logical pages including apparatus for calling and ordering the sequence of pagelets from different erase blocks in the set of erase blocks.

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Номер записи: 39
15-03-2012 дата публикации

Apparatus and method for programmable read preamble

Номер: US20120066464A1
Автор: Anthony Le, Clifford Alan Zitlaw
Принадлежит: SPANSION LLC

A memory device is provided. The memory device includes a preamble memory and a memory controller. The preamble memory is arranged to store a read preamble such that the read preamble includes a training pattern that is suitable for aligning a capture point for read data. Further, the training pattern is programmable such that the training pattern can be altered at least once subsequent to manufacture of the preamble memory. In response to a read command, the memory controller provides the read preamble stored in the preamble memory, as well as the read data.

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Номер записи: 40
15-03-2012 дата публикации

System recovery method and computing apparatus having system recovery function

Номер: US20120066546A1
Автор: Bum-keun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A system recovery method and a computing apparatus having a system recovery function. The computing apparatus includes a first memory unit to store a general operating system (OS) in a system partition where a primary anti-virus program operates, and to store a recovery OS in a recovery partition where a secondary anti-virus program operates; a second memory unit to store firmware determining a booting partition of the computing apparatus; and a processor to control execution of the firmware to, when the system partition is infected by a virus and thus the computing apparatus does not boot to the general OS, boot the computing apparatus to the recovery OS, and to control recovery of the system partition.

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Номер записи: 41
22-03-2012 дата публикации

System and Method for Automatically Updating, Backing Up or Restoring Access Control Systems

Номер: US20120068815A1
Автор: Jeffrey S. Zingsheim, John A. Dziadosz
Принадлежит: Honeywell International Inc

An access control panel can be updated substantially automatically by loading a thumb drive with executable instructions, or information, and coupling the drive to the panel and transferring the instructions or information to the panel for execution or storage. Alternately, the coupling can be implemented via a computer network.

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Номер записи: 42
29-03-2012 дата публикации

Intra-device data protection in a raid array

Номер: US20120079189A1
Автор: Bo Hong, Ethan MILLER, John Colgrove, John Hayes
Принадлежит: Pure Storage Inc

A system and method for intra-device data protection in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to identify a unit of data stored in the data storage subsystem, wherein said unit of data is stored across at least a first storage device and a second storage device of the plurality of storage devices, each of the first storage device and the second storage device storing intra-device redundancy data corresponding to the unit of data; and change an amount of intra-device redundancy data corresponding to the unit of data on only the first storage device.

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Номер записи: 43
29-03-2012 дата публикации

Cache with Multiple Access Pipelines

Номер: US20120079204A1
Автор: Abhijeet Ashok Chachad, Jonathan (Son) Hung Tran, Raguram Damodaran, Sanjive Agarwala, Timothy David Anderson
Принадлежит: Texas Instruments Inc

Parallel pipelines are used to access a shared memory. The shared memory is accessed via a first pipeline by a processor to access cached data from the shared memory. The shared memory is accessed via a second pipeline by a memory access unit to access the shared memory. A first set of tags is maintained for use by the first pipeline to control access to the cache memory, while a second set of tags is maintained for use by the second pipeline to access the shared memory. Arbitrating for access to the cache memory for a transaction request in the first pipeline and for a transaction request in the second pipeline is performed after each pipeline has checked its respective set of tags.

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Номер записи: 44
29-03-2012 дата публикации

Application migration and power consumption optimization in partitioned computer system

Номер: US20120079227A1
Автор: Tomohiko Suzuki
Принадлежит: Individual

A storage device including a migration source logical volume of an application copies data stored in the logical volume into a migration destination logical volume of the application. After the copy process is started, the storage device stores data written into the migration source logical volume as differential data without storing the data into the migration source logical volume. When the copy process is completed for the data stored in the migration source logical volume, a management computer starts copying of the differential data, and in a time interval after the copying of the data stored in the migration source logical volume is completed but before the copying of the differential data is completed, a computer being a migration destination of the application is turned ON, thereby reducing power consumption at the time of application migration.

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Номер записи: 45
29-03-2012 дата публикации

Opportunistic decoding in memory systems

Номер: US20120079355A1
Автор: Ara Patapoutian, Bernardo Rub, Bruce Buch
Принадлежит: SEAGATE TECHNOLOGY LLC

Approaches for decoding data read from memory cells of a nonvolatile, solid state memory involve attempting to decode hard data using a hard decoding process prior to a time that soft data is available to the decoder. The hard data includes information about the digital symbols stored in the memory cells without data confidence information. The soft data includes information about the digital symbols stored in the memory cells and data confidence information. In response to the hard decoding process failing to achieve convergence, after the soft data becomes available to the decoder, the soft data is decoded using a soft decoding process. The decoder generates an output of the decoded data after the hard decoding process or the soft decoding process achieves convergence.

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Номер записи: 46
05-04-2012 дата публикации

Change capture prior to shutdown for later backup

Номер: US20120084258A1
Автор: Prashant Parikh, Pratap Karonde
Принадлежит: Computer Associates Think Inc

A computer implemented method includes monitoring blocks of data on a storage device that are changing as the computer operates. On detecting a computer shut down event, a copy of changes to the monitored blocks are saved. Upon startup of the computer, a backup of the changed blocks of data is performed.

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Номер записи: 47
05-04-2012 дата публикации

Automatic replication of virtual machines

Номер: US20120084414A1
Автор: Ronald Leaton Skeoch, Scott L. Brock, Sumit Kumar Bose
Принадлежит: Unisys Corp

Systems and methods are disclosed herein to automatically replicate virtual machine image (VM) files on secondary VM computing devices, from a primary VM computing device. The secondary VM computing devices are automatically selected by constantly reviewing the operating parameter values (e.g., cost of resources, power consumption, etc.) of a number of secondary VM computing devices available of storing VM image replicas. The replica of the primary VM image is stored in the secondary VM computing devices in geographically disparate cloud locations. The primary VM image is automatically broken into constituent data blocks stored in an active index, which is compared against a stale index of data blocks. When an update is detected in the primary VM image, the comparison of indices will indicate that there is new data. Only the new data is used to update the secondary VM images, thereby reducing network traffic and latency issues.

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Номер записи: 48
05-04-2012 дата публикации

Memory for accessing multiple sectors of information substantially concurrently

Номер: US20120084494A1
Автор: Berhanu Iman, Petro Estakhri
Принадлежит: Micron Technology Inc

A memory storage system of an embodiment includes a non-volatile memory unit and memory control circuitry coupled to the memory unit. The memory control circuitry is configured to access multiple sectors of information substantially concurrently.

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Номер записи: 49
05-04-2012 дата публикации

Reconstruct reads in a raid array with dynamic geometries

Номер: US20120084505A1
Автор: Bo Hong, Ethan MILLER, John Colgrove, John Hayes
Принадлежит: Pure Storage Inc

A system and method for dynamic RAID geometries. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to configure a first subset of the storage devices for use in a first RAID layout, the first RAID layout including a first set of redundant data. The controller further configures a second subset of the storage devices for use in a second RAID layout, the second RAID layout including a second set of redundant data. Additionally, the controller configure an additional device not included in either the first subset or the second subset to store redundant data for both the first RAID layout and the second RAID layout. The controller is further configured to initiate a reconstruct read corresponding to a given read request directed to a particular storage device of the plurality of storage devices, in response to determining the particular storage device is exhibiting a non-error related relatively slow read response.

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Номер записи: 50
05-04-2012 дата публикации

Disk array apparatus and firmware update method therefor

Номер: US20120084508A1
Автор: Ryo Suzuki
Принадлежит: NEC Corp

This invention proposes a disk array apparatus capable of improving its reliability. This disk array apparatus includes a first controller, and a second controller configured redundantly with the first controller, wherein the first controller and the second controller respectively include a storage area for storing firmware and are both in an operating state. When update processing of an update portion as a portion to be updated in the firmware of the first controller is unsuccessful, the first controller confirms whether update processing of an update portion of the firmware of the second controller is also unsuccessful, and, in a case where the update processing of the update portion of the firmware of the second controller has ended normally, rewrites firmware data of the update portion of the first controller with the firmware data of the update portion of the second controller.

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Номер записи: 51
05-04-2012 дата публикации

Data recovery using outer codewords stored in volatile memory

Номер: US20120084627A1
Автор: Daniel J. Post, Kenneth Herman
Принадлежит: Apple Inc

Systems and methods are disclosed for data recovery using outer codewords stored in volatile memory. Outer codewords can be associated with one or more horizontal portions or vertical portions of a non-volatile memory (“NVM”). In some embodiments, an NVM interface of an electronic device can program user data to a super block of the NVM. The NVM interface can then determine if a program disturb has occurred in the super block. In response to detecting that a program disturb has occurred in the super block, the NVM interface can perform garbage collection on the super block. The NVM interface can then use outer codewords associated with the super block to recover from any uncorrectable error correction code errors detected in the super block.

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Номер записи: 52
12-04-2012 дата публикации

Automated and self-adjusting data protection driven by business and data activity events

Номер: US20120089572A1
Автор: David G. Van Hise, Eran Raichstein, Gregory J. Tevis, James P. Smith, Oren WOLF
Принадлежит: International Business Machines Corp

Techniques for adjusting the frequency of data backups and initiating event-driven backups in a storage system are disclosed herein. In one embodiment, a self-adjusting backup frequency, known as a “Change Rate Objective,” is defined to conduct or delay backups for one or more volumes in the storage system on the basis of an associated policy value. The Change Rate Objective may be tied to one or more business or data activity events, such as the amount and type of data changes since a last backup. The storage system may also be tailored to conduct or delay full or incremental backups on the basis of a Change Rate Objective that measures whether a full or incremental or differential backup is more appropriate. Various data or system failures, or data or business events may also be used to adjust the retention periods of continuous data protection (CDP) data and delay a rollup of CDP data.

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Номер записи: 53
12-04-2012 дата публикации

Item level recovery

Номер: US20120089576A1
Автор: Amit Singla, Harsh Mittal, Pankaj Khanzode, Sai Peyyeti, Seshagiri K V
Принадлежит: Microsoft Corp

A backup and restore system may present recovered backup data as local resources and in a read and write manner so that the recovered backup data may be accessed using an application that created the data. In some embodiments, the recovered data may be read only data, but a differencing virtual hard disk (VHD), Common Internet File System protocol, or differencing driver may be used to present a read/write version of the data. Additionally, the data may be presented using iSCSI or other technologies to present the data as local data, even though the data may be remotely located. The backup and restore system may additionally use VHD differencing technologies to create multiple backups.

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Номер записи: 54
12-04-2012 дата публикации

Determining processor offsets to synchronize processor time values

Номер: US20120089815A1
Автор: Bernhard Laubli, Charles S. Cardinell, Timothy J. Van Patten
Принадлежит: International Business Machines Corp

Provided are a computer program product, system, and method for determining processor offsets to synchronize processor time values. A determination is made of a master processor offset from one of a plurality of time values of the master processor and a time value of one of the slave processors. A determination is made of slave processor offsets, wherein each slave processor offset is determined from the master processor offset, one of the time values of the master processor, and a time value of the slave processor. A current time value of the master processor is adjusted by the master processor offset. A current time value of each of the slave processors is adjusted by the slave processor offset for the slave processor whose time value is being adjusted.

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Номер записи: 55
19-04-2012 дата публикации

Semiconductor package

Номер: US20120096322A1
Автор: Kwi-Dong Kim, Tae-Hyoung HUH
Принадлежит: Hynix Semiconductor Inc

A semiconductor package includes a memory controller chip, a plurality of first memory chips configured to store normal data, a second memory chip configured to store error information for correcting or detecting error of the normal data, and an interface unit configured to interface the memory controller chip, the plurality of first memory chips, and the second memory chip.

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Номер записи: 56
19-04-2012 дата публикации

Data processing method and semiconductor integrated circuit

Номер: US20120096335A1
Автор: Nobuhiro Tsuboi, Tomohisa Sezaki, Tsukasa Takahashi, Yoshiteru Mino
Принадлежит: Panasonic Corp

A read process is performed on an ith designated block storing an ith divided data string. If the ith divided data string is not normally read, the read process is sequentially executed on ith ordinary blocks each storing the ith divided data string, where the ith ordinary blocks are included in ordinary block groups, respectively. When the ith divided data string is normally read, it is determined whether or not reading p divided data strings has been completed. If it is determined that the reading the p divided data strings has not been completed, the read process is performed on an (i+1)th designated block storing an (i+1)th divided data string following the ith divided data string.

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Номер записи: 57
19-04-2012 дата публикации

Method and apparatus for generating an application program for a safety-related control unit

Номер: US20120096428A1
Автор: Matthias Reusch, Peter MOOSMANN
Принадлежит: Individual

A safety controller designed to control an automated installation having a plurality of sensors and a plurality of actuators. A method for generating a user program for the safety controller comprises the step of generating a source code having a number of control instructions for controlling the actuators and having a number of diagnosis instructions for producing diagnosis reports. Safety-related program variables are processed in failsafe fashion during execution of the control instructions. A machine code is generated on the basis of the source code. At least one checksum is determined for at least some of the machine code. The diagnosis instructions are ignored for the determination of the checksum.

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Номер записи: 58
26-04-2012 дата публикации

Server having memory dump function and memory dump acquisition method

Номер: US20120102358A1
Автор: Hiroshi Kondo, Kenji Gotsubo, Ryo Tabei
Принадлежит: Fujitsu Ltd

A server having a plurality of system boards, comprising: a panic processing unit configured to stop (panic) the server; a system board information storage unit configured to store information to identify a system board having a memory used by a kernel; a system board detaching processing unit configured to detach the system board having the memory used by the kernel before server stoppage; and a reboot processing unit configured to reboot the server using system boards other than the separated system board among the plurality of system boards, after detaching the system board having the memory used by the kernel.

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Номер записи: 59
03-05-2012 дата публикации

Method for coding and decoding digital data, particularly data processed in a microprocessor unit

Номер: US20120110413A1
Автор: Lars Hoffmann
Принадлежит: Giesecke and Devrient GmbH

The invention relates to a method for encoding digital data, in particular of data processed in a microprocessor unit. In the method according to the invention for a respective data word (A, B, C) of a series of data words to be encoded subsequently a parity code (P(A), P(B), P(C)) is computed on the basis of the data of the respective data word (A, B, C). Further the respective data word (A, B, C) is altered with the aid of the data word (A, B, C) preceding it in the series, wherein the altered data word (Aa, Ba, Ca) and the parity code (P(A), P(B), P(C)) represent the encoded data word (Ac, Bc, Cc) and the encoded data word (Ac, Bc, Cc) can be decoded with the aid of the data word (A, B, C) preceding it in the series.

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Номер записи: 60
03-05-2012 дата публикации

Hybrid error correction coding to address uncorrectable errors

Номер: US20120110417A1
Автор: Manuel Antonio D' Abreu, Stephen Skala
Принадлежит: SanDisk Corp

A method in a memory device includes receiving data including a data block and main error correction coding (ECC) data for the data block. The data block includes a first sub-block of data and first ECC data corresponding to the first sub-block. An ECC operation is initiated to process the data block using the main ECC data. In response to the ECC operation indicating uncorrectable errors in the data, a first sub-block ECC operation is initiated to process the first sub-block of data using the first ECC data.

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Номер записи: 61
03-05-2012 дата публикации

System and Method for Migration of Data

Номер: US20120110593A1
Автор: Gaurav Chawla, Jacob Cherian
Принадлежит: Dell Products LP

Systems and methods for data migration are disclosed. A method may include allocating a destination storage resource to receive migration data. The method may also include assigning the destination storage resource a first identifier value equal to an identifier value associated with a source storage resource. The method may additionally include assigning the source storage resource a second identifier value different than the first identifier value. The method may further include migrating data from the source storage resource to the destination storage resource.

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Номер записи: 62
10-05-2012 дата публикации

Backup policies for using different storage tiers

Номер: US20120117029A1
Автор: Stephen Gold
Принадлежит: Hewlett Packard Development Co LP

Systems and methods of using different storage tiers based on a backup policy are disclosed. An example of a method includes receiving a backup job from a client for data on a plurality of virtualized storage nodes. The method also includes identifying at least one property of the backup job. The method also includes accessing the backup policy for the backup job. The method also includes selecting between storing incoming data for the backup job on the plurality of virtualized storage nodes in a first tier or a second tier based on the backup policy.

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Номер записи: 63
10-05-2012 дата публикации

Providing fault-tolerant spread spectrum clock signals in a system

Номер: US20120117415A1
Автор: Mark A. Shaw, Rangaswamy Arumugham, Stuart Haden
Принадлежит: Hewlett Packard Development Co LP

To provide fault-tolerant, spread spectrum clock signals, a plurality of processing modules having respective spread spectrum control circuits are provided. Clock signals of redundant clock sources are provided to the plurality of processing modules. Failover control logic selects a corresponding one of the clock signals from the redundant clock sources for use in each of the processing modules. Frequency spreading is applied to the corresponding selected clock signal in each of at least some of the plurality of processing module.

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Номер записи: 64
17-05-2012 дата публикации

System and method for managing data with service level agreements that may specify non-uniform copying of data

Номер: US20120123999A1
Автор: Ashutosh Ashutosh, David F. Chang, Madhav Mutalik
Принадлежит: Actifio Inc

Systems and methods are disclosed for a system for managing data in accordance with service level agreements (SLAs) that specify schedules on a calendar basis for performing prescribed data management functions and for reducing inter-function redundancy. This system may include a data management engine for performing data management functions, including at least a snapshot function, and at least one back-up function. The data management engine may include a service level policy engine that receives SLAs in electronic form and which controls the scheduling of the data management functions. Each electronic SLA may be associated with a corresponding application and may specify at least one service level policy, each policy specifying a source pool, a destination pool, a copy frequency, a retention period and schedule information. A collection of policies is capable of expressing a non-uniform schedule for when a given function should be performed.

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Номер записи: 65
17-05-2012 дата публикации

System and method for improved garbage collection operations in a deduplicated store by tracking temporal relationships among copies

Номер: US20120124105A1
Автор: Christopher A. Provenzano
Принадлежит: Actifio Inc

Systems and methods are disclosed for performing garbage collection to identify content segments no longer referenced in a deduplicating storage system in which redundant mark operations in a mark-and-sweep technique are avoided. An organized arrangement of hash structures is created for each data object, wherein each structure includes a hash signature for a corresponding content segment and is associated with a reference to the corresponding content segment, and the logical organization of the arrangement represents the logical organization of the content segments as they are represented within the data object. Additionally, for each data object, temporal states are maintained over time. Garbage collection iterates over the temporal structures and, for each temporal structure, marks the garbage collection state for the associated content segments for only the content segments that have changed relative to an immediately prior temporal state of the data object.

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Номер записи: 66
17-05-2012 дата публикации

Memory subsystem having a first portion to store data with error correction code information and a second portion to store data without error correction code information

Номер: US20120124448A1
Автор: David F. Heinrich, Hung Q. Le, Ted Emerson
Принадлежит: Hewlett Packard Development Co LP

A system comprising a memory subsystem having at least one memory device, and a memory controller to control access of the memory subsystem, wherein the memory controller is configured to store data with error correction code (ECC) information in a first portion of the memory subsystem, and to store data without ECC information in a second portion of the memory subsystem.

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Номер записи: 67
24-05-2012 дата публикации

Reconfigurable Integrated Circuit Architecture With On-Chip Configuration and Reconfiguration

Номер: US20120131288A1
Автор: Brian A. Box, John M. Rudosky, Stephen L. Wasson, Steven Hennick Kelem
Принадлежит: Element CXI LLC

The exemplary embodiments provide a reconfigurable integrated circuit capable of on-chip configuration and reconfiguration, comprising: a plurality of configurable composite circuit elements; a configuration and control bus; a memory; and a sequential processor. Each composite circuit element comprises: a configurable circuit; and an element interface and control circuit, the element interface and control circuit comprising an element controller and at least one configuration and control register to store one or more configuration and control words. The configuration and control bus is coupled to the plurality of configurable composite circuit elements, and comprises a plurality of address and control lines and a plurality of data lines. The sequential processor can write configurations to the configuration and control registers of an addressed configurable composite circuit element to configure or reconfigure the configurable circuit.

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Номер записи: 68
24-05-2012 дата публикации

Data archiving using data compression of a flash copy

Номер: US20120131293A1
Автор: Alfred Emilio Sanchez, Lokesh Mohan Gupta, Michael Thomas Benhase, Yu-Cheng Hsu
Принадлежит: International Business Machines Corp

Embodiments of the disclosure relate to archiving data in a storage system. An exemplary embodiment comprises making a flash copy of data in a source volume, compressing data in the flash copy wherein each track of data is compressed into a set of data pages, and storing the compressed data pages in a target volume. Data extents for the target volume may be allocated from a pool of compressed data extents. After each stride worth of data is compressed and stored in the target volume, data may be destaged to avoid destage penalties. Data from the target volume may be decompressed from a flash copy of the target volume in a reverse process to restore each data track, when the archived data is needed. Data may be compressed and uncompressed using a Lempel-Ziv-Welch process.

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Номер записи: 69
24-05-2012 дата публикации

Server and method for performing data recovery of the server

Номер: US20120131318A1
Автор: Zi-Yu Zhan
Принадлежит: Hon Hai Precision Industry Co Ltd, Hongfujin Precision Industry Shenzhen Co Ltd

A method for performing data recovery of a server sends a data recovery request from a basic input output system (BIOS) of the server to a backup microchip of the server if a master operating system (OS) of an original microchip of the server is not available when the server is powered on, obtains a backup initial OS of the server from a storage unit of the backup microchip, and boots the backup initial OS according to a bootstrap of the backup initial OS. The method further obtains a backup master OS of the server from the storage unit of the backup microchip, sends the backup master OS to the original microchip of the server, and restarts the server according to the backup master OS.

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Номер записи: 70
24-05-2012 дата публикации

Memory controller and information processing system

Номер: US20120131382A1
Автор: Masanori Higeta
Принадлежит: Fujitsu Ltd

A information processing system comprises a memory module having a plurality of unit memory regions, a memory controller, connected to the memory module via memory interface, configured to control access to the memory module, an error detector, which is in the memory controller, configured to perform an error detection on data read from the memory module, a failure inspection controller configured to switch a mode of the memory controller from a normal mode to a failure inspection mode, read data from an address, where data was written, to be inspected for each of the plurality of unit memory regions, causes the error detector to detect an error in the read data and perform a failure inspection and a determining unit configured to determine a memory failure or a transmission path failure on the basis of the state of the error detected from the unit memory regions.

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Номер записи: 71
24-05-2012 дата публикации

Method and system for protecting against multiple failures in a raid system

Номер: US20120131383A1
Автор: Choon-Seng Tan, Greg J. Pellegrino, Ryan A. Callison, William C. Galloway
Принадлежит: Pivot3 Inc

Embodiments of methods of protecting RAID systems from multiple failures and such protected RAID systems are disclosed. More particularly, in certain embodiments of a distributed RAID system each data bank has a set of associated storage media and executes a similar distributed RAID application. The distributed RAID applications on each of the data banks coordinate among themselves to distribute and control data flow associated with implementing a level of RAID in conjunction with data stored on the associated storage media of the data banks. Furthermore, one or more levels of RAID may be implemented within one or more of the data banks comprising the distributed RAID system.

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Номер записи: 72
24-05-2012 дата публикации

Memory device

Номер: US20120131418A1
Автор: Hideki Yoshida, Masaya Tarui, Tatsunori Kanai, Yutaka Yamada
Принадлежит: Toshiba Corp

According to one embodiment, a memory device comprises a writing device that writes data bits, check bits for error corrections, and overhead bit(s) into a memory, each bit of the overhead bit(s) corresponding to each group of bit group(s) including at least one bit of the data bits and/or the check bits, each bit of the overhead bit(s) indicating whether the corresponding bit group has been inverted, a reading unit that reads the data bits, the check bits, and the overhead bit(s) from the memory, a correcting unit that corrects an error in the data bits and overhead bit(s) read from the memory, based on the check bits, and an inverting unit that inverts the data bits contained in the bit group corresponding to the overhead bit and outputs the inverted data bits as data read from the memory when the error-corrected overhead bit indicates that inversion has been performed.

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Номер записи: 73
31-05-2012 дата публикации

Information processing method and information processing apparatus

Номер: US20120136837A1
Автор: Hiroki Moue, Hiromichi Kobashi, Miho Murata, Nobutaka Imamura, Toshiaki Saeki, Yasuo Yamane, Yuichi Tsuchimoto
Принадлежит: Fujitsu Ltd

A first node apparatus included in a distributed data store acquires first operation information and a first timestamp corresponding to target data. The first operation information specifies a first operation to be executed on the target data. The first timestamp indicates a first receipt time of the first operation information. The first node apparatus determines whether the first receipt time is earlier than some of second receipt times on the basis of second timestamps and the acquired first timestamp. The second timestamp indicates the second receipt time of second operation information. The second operation information specifies a second operation executed on the target data. The first node apparatus re-executes the second operations together with the first operation on the target data in the order of the receipt time when it is determined that the first receipt time is earlier than some of the second receipt times.

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Номер записи: 74
31-05-2012 дата публикации

Method and System for Initializing Storage in a Storage System

Номер: US20120137069A1
Автор: Choon-Seng Tan, George J. Scholhamer, III, Greg J. Pellegrino, Ryan A. Callison, William C. Galloway
Принадлежит: Pivot3 Inc

Embodiments of systems and methods for a high availability storage system are disclosed. More particularly, in certain embodiments desired locations of storage devices may be zeroed out during operation of the storage system and areas that have been zeroed out allocated to store data when commands pertaining to that data are received. Specifically, in one embodiment a distributed RAID system comprising a set of data banks may be provided where each data bank in the set of data banks may execute a background process which zeroes areas of the storage devices of the data bank. When a command pertaining to a logical location is received a zeroed area of the physical storage devices on the data bank may be allocated to store data associated with that logical location.

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Номер записи: 75
31-05-2012 дата публикации

Method for protecting data in damaged memory cells by dynamically switching memory mode

Номер: US20120137168A1
Автор: Ying-chih Lu
Принадлежит: Inventec Corp

A method for protecting data in damaged memory cells by dynamically switching memory mode is provided. The method is adapted to an electronic device having a memory, which has a memory controller and at least one memory module, each of which is consisted of a plurality of memory cells, and the memory cells are divided into a plurality of pages. A power-on self test is executed and a mirror memory mode is activated to protect the data in the memory modules. An uncorrectable error of each page of the memory modules is detected by the memory controller when an operating system reads the memory. If the uncorrectable error in one page is detected, the memory module having the page is determined as a damaged memory module, and the mirror memory mode is switched to a spare memory mode, so as to protect the data in the memory modules.

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Номер записи: 76
07-06-2012 дата публикации

Method and memory controller for reading data stored in flash memory by referring to binary digit distribution characteristics of bit sequences read from flash memory

Номер: US20120140560A1
Автор: Tsung-Chieh Yang
Принадлежит: Silicon Motion Inc

An exemplary method for reading data stored in a flash memory includes: controlling the flash memory to perform a plurality of read operations upon each of a plurality of memory cells included in the flash memory; obtaining a plurality of bit sequences read from the memory cells, respectively, wherein the read operations read bits of a predetermined bit order from each of the memory cells as one of the bit sequences by utilizing different control gate voltage settings; and determining readout information of the memory cells according to binary digit distribution characteristics of the bit sequences.

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Номер записи: 77
07-06-2012 дата публикации

Validation of access to a shared data record subject to read and write access by multiple requesters

Номер: US20120143836A1
Автор: Eric P. Fried, Lance W. Russell, Murali Vaddagiri, Rajeev Mishra
Принадлежит: International Business Machines Corp

According to a method of access to a shared data record subject to contemporaneous read and write access by multiple requesters, a requester reads a shared data record including a payload and a first checksum. The requester calculates a second checksum of the payload of the data record. If the first and second checksums are not equal, the requester again reads the shared data record, including a third checksum, and calculates a fourth checksum of the payload of the shared data record. If the third and fourth checksums are equal, the requester processes the shared data record as valid, and if the second and fourth checksums are equal, the requester handles the shared data record as corrupt.

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Номер записи: 78
07-06-2012 дата публикации

Data protection systems with multiple site replication

Номер: US20120144108A1
Автор: Dennis Desimone, Kenneth Geist, Michael H. Reider, Victoria Gonzalez
Принадлежит: Overland Storage Inc

Systems and methods for replicating data from a first site to a second site remote from said first site are described. An embodiment includes storing compressed data on a hard disk appliance, reading said data without decompressing said data, sending said data over a wide-area-network (WAN) in a compressed state, and storing said data on a second hard disk appliance remote from said first hard disk appliance in its compressed state without performing an additional compression operation.

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Номер записи: 79
07-06-2012 дата публикации

Arrangements detecting reset pci express bus in pci express path, and disabling use of pci express device

Номер: US20120144231A1
Автор: Nobuo Yagi
Принадлежит: Individual

A root port connection functioning as a PCI express bridge, and having a PCI express path constituting a PCI express tree having a PCI express device or switch; when detecting a failure on a PCI express path, a PCI express device or switch transmits a failure signal; the root port transmits an SMI responsive to the failure signal; the CPU executes the BIOS responsive to the SMI; the BIOS collects a log of the PCI express path where failure is detected, analyzes the collected log to judge failure type, and upon a fatal failure on the PCI express path, resets the PCI express tree downstream of the root port that received the failure signal, and upon a non-fatal failure on the PCI express path, resets the PCI express device in which the failure occurred; and the CPU closes the reset PCI express device by executing the device driver.

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Номер записи: 80
07-06-2012 дата публикации

Obviation of Recovery of Data Store Consistency for Application I/O Errors

Номер: US20120144233A1
Автор: Angela A. Jaehde, Douglas J. Griffith, Somasundaram Krishnasamy, Stephen A. Schlachter
Принадлежит: International Business Machines Corp

Embodiments comprise a plurality of computing devices that dynamically intercept process application I/O errors. Various embodiments comprise two or more computing devices, such as two or more servers, each having access to a shared data storage system. An application may be executing on the first computing device and performing an I/O operation when an I/O error occurs. The first computing device may intercept the I/O error, rather than passing it back to the application, and prevent the error from affecting the application. The first computing device may complete the I/O operation, and any other pending I/O operations not written to disk, via an alternate path, perform a checkpoint operation to capture the state of the set of processes associated with the application, and transfer the checkpoint image to the second computing device. The second computing device may resume operation of the application from the checkpoint image.

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Номер записи: 81
07-06-2012 дата публикации

Program Disturb Error Logging and Correction for Flash Memory

Номер: US20120144249A1
Автор: Ashish Jagmohan, Michele M. Franceschini
Принадлежит: International Business Machines Corp

Program disturb error logging and correction for a flash memory including a computer implemented method for storing data. The method includes receiving a write request that includes data and a write address of a target page in a memory. A previously programmed page at a specified offset from the target page is read from the memory. Contents of the previously programmed page are compared to an expected value of the previously programmed page. Error data is stored in an error log in response to contents of the previously programmed page being different than the expected value of the previously programmed page, the error data describing an error in the previously programmed page and the error data used by a next read operation to the previously programmed page to correct the error in the previously programmed page. The received data is written to the target page in the memory.

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Номер записи: 82
07-06-2012 дата публикации

Methods of data handling

Номер: US20120144263A1
Автор: Brady L. Keays, Shuba Swaminathan, William H. Radke
Принадлежит: Micron Technology Inc

Methods include receiving data and an ECC code read from a memory array, generating an ECC code from the received data, and determining whether the received data is corrupted by evaluating the generated ECC code against the ECC code read from the memory array. If the received data is determined to be corrupted, a correction algorithm and a recorded likely state of a known bad/questionable bit of the received data may be used to correct error in the received data. Alternatively, if the received data is determined to be corrupted, the correction algorithm and a recorded location of a known bad/questionable bit of the received data may be used to correct error in the received data.

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Номер записи: 83
07-06-2012 дата публикации

Apparatus and method for indicating a packet error in an audio and video communication system

Номер: US20120144265A1
Автор: Hak-Ju Lee, Jin-Hee Jeong, Se-Ho Myung, Sung-hee Hwang
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method are provided for indicating an error of a transport packet in an audio and video communication system. The method includes receiving a frame including a transport packet, attempting Forward Error Correction (FEC) on the frame, and setting a value of an error indicating field in the transport packet according to a result of the FEC. The error indicating field includes at least one of a first flag indicating a presence or absence of an error in the transport packet, a second flag indicating a success or failure of the FEC, and a third flag indicating detection or non-detection of a Cyclic Redundancy Check (CRC).

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Номер записи: 84
14-06-2012 дата публикации

Method and system for performing data backup and restoration

Номер: US20120150808A1
Автор: Kristopher Pate, Paul Hubner, Robert A. Clavenna, Steven T. Archer
Принадлежит: VERIZON PATENT AND LICENSING INC

An approach for enabling execution of data backup and restoration among a group of user devices is described. A data management platform detects at a source device, one or more peer devices capable of wireless communication with the source device. It then determines one or more of the peer devices as belonging to a backup device group according to a predetermined criterion. The data management platform 103 then designates data resident within the source device for backup and initiates transfer of the backup data to the backup device group over a wireless communication session.

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Номер записи: 85
14-06-2012 дата публикации

System and method for maintaining a data redundancy scheme in a solid state memory in the event of a power loss

Номер: US20120151253A1
Автор: Robert L. Horn
Принадлежит: Western Digital Technologies Inc

Embodiments of the invention are directed to systems and methods for reducing an amount of backup power needed to provide power fail safe preservation of a data redundancy scheme such as RAID that is implemented in solid state storage devices where new write data is accumulated and written along with parity data. Because new write data cannot be guaranteed to arrive in integer multiples of stripe size, a full stripe's worth of new write data may not exist when power is lost. Various embodiments use truncated RAID stripes (fewer storage elements per stripe) to save cached write data when a power failure occurs. This approach allows the system to maintain RAID parity data protection in a power fail cache flush case even though a full stripe of write data may not exist, thereby reducing the amount of backup power needed to maintain parity protection in the event of power loss.

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Номер записи: 86
14-06-2012 дата публикации

Hardware turnkey mobiltity

Номер: US20120151257A1
Автор: Terry Tam
Принадлежит: MITEL NETWORKS CORP

A system and method for producing a factory build of an embedded appliance is disclosed. The method comprises providing an embedded appliance having first and second digital storage locations, with the second location including a boot manager and a recovery operating system. A factory image of operational software is copied to the secondary digital storage location. The embedded appliance is configured to boot from the second digital storage location at an initial startup and load a recovery operating system to copy the factory image to the primary digital storage location to enable the embedded appliance to operate from the operational section using the operational software.

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Номер записи: 87
14-06-2012 дата публикации

System reset

Номер: US20120151258A1
Автор: Calin Negreanu, Desmond T. Lee, Gregory W. Nichols, Hongliu Zheng, Keshava Prasad Subramanya, Kiran Kumar Dowluru, Sri Sai Kameswara Pavan Kumar Kasturi, Stephan Doll, Vinit Ogale, Yunan Yuan
Принадлежит: Microsoft Corp

Some embodiments of the invention provide techniques whereby a user may perform a system reset (e.g., to address system performance and/or reliability degradation, such as which may be caused by unused applications that unnecessarily consume system resources, an attempted un-install of an application that left remnants of the application behind, and/or other causes). In some embodiments, performing a system reset replaces a first instance of an operating system on the system with a new instance of the operating system, and removes any applications installed on the system, without disturbing the user's data.

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Номер записи: 88
14-06-2012 дата публикации

Method and apparatus for correcting errors in memory device

Номер: US20120151294A1
Автор: Chan Ik Park, Hyun Jin Choi, Nam-Wook Kang, Sung Joo Yoo
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A memory controller analyzes read data received from a memory device and first error correction code (ECC) data of the read data. A control unit generates a plurality of sub-data from write data to be written in the memory device where the number of error bits in the read data is greater than a number of error bits that can be corrected using the first ECC data. An ECC block generates the first ECC data and second ECC data by using substantially the same algorithm to correct errors in each of the sub-data. The control unit transmits each of the sub-data, the first ECC data and the second ECC data to the memory device.

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Номер записи: 89
21-06-2012 дата публикации

Context-specific rollback

Номер: US20120158661A1
Автор: Desmond T. Lee, Gregory W. Nichols, Hongliu Zheng, Keshava Prasad Subramanya, Kiran Kumar Dowluru, Sri Sai Kameswara Pavan Kumar Kasturi, Stephan Doll, Vinit Ogale, Wing Yu Christine Fok, Yunan Yuan
Принадлежит: Microsoft Corp

Some embodiments of the invention provide components and/or techniques that may assist in choosing a snapshot to which to roll back to address a system malfunction. For example, some embodiments of the invention may record various metrics describing the system's performance, reliability and/or functionality at the points at which various snapshots are taken, along any of numerous dimensions. When a user later indicates a desire to restore the system to a previous point, these metrics may be analyzed to choose a snapshot to which to roll back.

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Номер записи: 90
21-06-2012 дата публикации

Backup and restore of data from any cluster node

Номер: US20120158662A1
Автор: Andrea D'amato, Joydeep Buragohain, Vinod R. Shankar
Принадлежит: Microsoft Corp

Implementing point in time back-up. A method that may be practiced in a distributed computing environment. The distributed computing environment includes a number of computing system nodes. The method includes at a first node in the computing environment, taking a snapshot of a cluster volume. The cluster volume stores data items (e.g. files/blocks). Taking a snapshot includes marking a point in time for data items in the volume. The method further includes receiving a notification that a different node in the computing environment than the first node, has determined to change a data item in the cluster volume at a point after the marked point in time from an old version of the data item to a new version of the data item. The method further includes at the first node, saving the old version of the data item prior to modification.

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Номер записи: 91
21-06-2012 дата публикации

System reset and system restore

Номер: US20120158665A1
Автор: Desmond T. Lee, Gregory W. Nichols, Hongliu Zheng, Keshava Prasad Subramanya, Kiran Kumar Dowluru, Sri Sai Kameswara Pavan Kumar Kasturi, Stephan Doll, Vinit Ogale, Yunan Yuan
Принадлежит: Microsoft Corp

Some embodiments of the invention provide techniques for performing system reset and/or system restore operations. Some embodiments store a record of any changes performed to a data file stored on a virtual hard disk using differencing virtual disks that are captured over time. To restore the file to the state in which it existed at any particular point in time, embodiments of the invention may allow for rolling back the system to a differencing virtual disk captured at or before that time and setting aside blocks of the differencing virtual disk chain captured after that point. To perform a system reset, the system may be rolled back to the parent virtual hard disk, by setting aside all of the blocks of the differencing virtual disk chain. Some embodiments of the invention provide for separating information on the system into a plurality of entities, and maintaining a separate set of differencing virtual disks for each entity. For example, some embodiments may create an entity may be created for each of the operating system, applications and user data, and maintain differencing virtual disks for each over time.

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Номер записи: 92
21-06-2012 дата публикации

System and method for handling io to drives in a raid system

Номер: US20120159067A1
Автор: Allen Kelton, Michael Richmond
Принадлежит: LSI Corp

A system and method for handling IO to drives in a RAID system is described. In one embodiment, the method includes providing a multiple disk system with a predefined strip size. IO request with a logical block address is received for execution on the multiple disk system. A plurality of sub-IO requests with a sub-strip size is generated, where the sub-strip size is smaller than the strip size. The generated sub-IO commands are executed on the multiple disk system. In one embodiment, a cache line size substantially equal to the sub-strip size is assigned to process the IO request.

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Номер записи: 93
21-06-2012 дата публикации

Protecting Data During Different Connectivity States

Номер: US20120159078A1
Автор: Apurva Ashwin Doshi, Bohdan W. Raciborski, Grigory Borisovich Lyakhovitskiy
Принадлежит: Microsoft Corp

Aspects of the subject matter described herein relate to data protection. In aspects, during a backup cycle, backup copies may be created for files that are new or that have changed since the last backup. If external backup storage is not available, the backup copies may be stored in a cache located on the primary storage. If backup storage is available, the backup copies may be stored in the backup storage device and backup copies that were previously stored in the primary storage may be copied to the backup storage. The availability of the backup storage may be detected and used to seamlessly switch between backing up files locally and remotely as availability of the backup storage changes.

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Номер записи: 94
21-06-2012 дата публикации

Information processing apparatus capable of appropriately executing shutdown processing, method of controlling the information processing apparatus, and storage medium

Номер: US20120159212A1
Автор: So Yokomizo, Tamotsu Takatani
Принадлежит: Canon Inc

An information processing apparatus capable of recovering the apparatus from a state in which software operation is abnormal to a state in which the same is normal. The information processing apparatus is provided with a CPU for receiving an instruction for turning off power of the information processing apparatus. Upon receipt of the instruction, the CPU determines whether or not it is necessary to turn off the power of the information processing apparatus. When it is necessary to turn off the power of the information processing apparatus, the CPU controls the information processing apparatus such that the power thereof is turned off, whereas when it is unnecessary to turn off the power of the information processing apparatus, the CPU controls the information processing apparatus such that the power thereof is not turned off.

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Номер записи: 95
28-06-2012 дата публикации

Data storage apparatus and apparatus and method for controlling nonvolatile memories

Номер: US20120166711A1
Автор: Kyosuke Takahashi, Motohiro Matsuyama
Принадлежит: Toshiba Corp

According to one embodiment, a data storage apparatus comprises a channel controller, an encoding module, and a data controller. The channel controller is configured to control data input to, and output from, nonvolatile memories for channels. The encoding module is configured to generate encoded data for which an inter-channel error correction process, using data stored in each of the nonvolatile memories. The data controller is configured to manage the encoded data in units of logic blocks when the channel controller writes the encoded data in parallel to the channels, and to allocate parity data contained in the encoded data to one plane in each logic block.

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Номер записи: 96
28-06-2012 дата публикации

Condensed fota backup

Номер: US20120166872A1
Автор: Bryan Rabeler, Song Wei
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus update an image stored in a memory of a device. A next block writing index n for updating a first target memory block of the memory is determined. Backup data is written to a backup block of the memory when n is an even number. The first target memory block is updated with the new data. The backup data is calculated based on a binary operation between new data corresponding to n and old data stored in a second target memory block corresponding to n+1, and the binary operation has reversibility. If n is the last block writing index, then the binary operation is not used and the backup data is the same as the new data.

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Номер записи: 97
28-06-2012 дата публикации

Method and system for reducing power loss to backup io start time of a storage device in a storage virtualization environment

Номер: US20120167079A1
Автор: Arindam Banerjee, Satish Sangapu
Принадлежит: LSI Corp

A method and controller device for supplying battery power to a virtualized storage environment having a storage controller with a virtual machine manager and a second virtual machine. In response to a battery engaged event, the first virtual machine manager enables the image of the second virtual machine to be shared with a new instance of the second virtual machine so that the image does not have to be loaded therein. The first virtual machine manager then creates the new virtual machine. The old virtual machine shuts down non-necessary hardware devices and sets necessary hardware devices to low power mode. During this time, the new virtual machine executes a backup specific start-of-day (SOD) initialization sequence. The method also synchronizes the new and old virtual machines. The method also initiates a cache memory backup operation upon synchronization of the new and old virtual machines and then shuts down the old virtual machine.

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Номер записи: 98
05-07-2012 дата публикации

Drive assisted system checkpointing

Номер: US20120173794A1
Автор: Amber D. Huffman, Robert J. Royer, Jr.
Принадлежит: Intel Corp

Systems and methods of managing computing system restore points may include an apparatus having logic to receive a command to start a restore point for a solid state drive (SSD). The logic may also conduct a context drop of an indirection table from a volatile memory of the SSD to a non-volatile memory of the SSD in response to the command to start the restore point.

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Номер записи: 99
12-07-2012 дата публикации

Supporting autonomous live partition mobility during a cluster split-brained condition

Номер: US20120179771A1
Автор: Jacob Jason Rosales, James A. Pafumi, Morgan Jeffrey Rosas, Vasu Vallabhaneni, Veena Ganti
Принадлежит: International Business Machines Corp

A method, data processing system, and computer program product autonomously migrate clients serviced by a first VIOS to other VIOSes in the event of a VIOS cluster “split-brain” scenario generating a primary sub-cluster and a secondary sub-cluster, where the first VIOS is in the secondary sub-cluster. The VIOSes in the cluster continually exchange keep-alive information to provide each VIOS with an up-to-date status of other VIOSes within the cluster and to notify the VIOSes when one or more nodes loose connection to or are no longer communicating with other nodes within the cluster, as occurs with a cluster split-brain event/condition. When this event is detected, a first sub-cluster assumes a primary sub-cluster role and one or more clients served by one or more VIOSes within the secondary sub-cluster are autonomously migrated to other VIOSes in the primary sub-cluster, thus minimizing downtime for clients previously served by the unavailable/uncommunicative VIOSes.

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Номер записи: 100