Biasing active-standby determination

In computing systems that provide multiple computing domains configured to operate according to an active-standby model, techniques are provided for intentionally biasing the race to gain mastership between competing computing domains, which determines which computing domain operates in the active mode, in favor of a particular computer domain. The race to gain mastership may be biased in favor of a computing domain operating in a particular mode prior to the occurrence of the event that triggered the race to gain mastership. For example, in certain embodiments, the race to mastership may be biased in favor of the computing domain that was operating in the active mode prior to the occurrence of an event that triggered the race to gain mastership.

ACHIEVING ULTRA-HIGH AVAILABILITY USING A SINGLE CPU

Techniques for achieving high-availability using a single processor (CPU). In a system comprising a multi-core processor, at least two partitions may be configured with each partition being allocated one or more cores of the multiple cores. The partitions may be configured such that one partition operates in active mode while another partition operates in standby mode. In this manner, a single processor is able to provide active-standby functionality, thereby enhancing the availability of the system comprising the processor. 1. A system comprising:a memory; anda processor comprising a plurality of cores, the plurality of cores being partitioned into at least a first partition and a second partition, wherein a first set of cores from the plurality of cores is allocated to the first partition and a second set of cores from the plurality of cores is allocated to the second partition, the first set of cores being different from the second set of cores;wherein the first partition is configured to operate in a first mode, wherein a set of functions is performed in the first mode;wherein, when the first partition is operating in the first mode, the second partition is configured to operate in a second mode, wherein the set of functions is not performed in the second mode; andwherein, in response to an event, the second partition is configured to start operating in the first mode instead of the first partition and to start performing the set of functions corresponding to the first mode.2. The system of wherein the first partition is configured to operate in the second mode after the second partition operates in the first mode.3. The system of wherein the memory is configured to store a hypervisor for managing the first partition and the second partition.4. The system of further comprising a port claim 1 , and wherein the set of functions comprises one or more functions related to processing of a packet received by the system via the port.5. The system of wherein the event ...

ACHIEVING ULTRA-HIGH AVAILABILITY USING A SINGLE CPU

Techniques for achieving high-availability using a single processor (CPU). In a system comprising a multi-core processor, at least two partitions may be configured with each partition being allocated one or more cores of the multiple cores. The partitions may be configured such that one partition operates in active mode while another partition operates in standby mode. In this manner, a single processor is able to provide active-standby functionality, thereby enhancing the availability of the system comprising the processor. 115.-. (canceled)16. A system comprising:a memory, wherein a first portion of the memory is allocated to a first partition and a second portion of the memory is allocated to a second partition; anda processor comprising a plurality of cores, wherein a first set of one or more cores from the plurality of cores is allocated to the first partition and a second set of one or more cores from the plurality of cores is allocated to the second partition;wherein the first partition is configurable to operate in a first mode and perform a function in the first mode;wherein the second partition is configurable to operate in a second mode when the first partition is operating in the first mode, the second mode being different from the first mode, wherein the function performed in the first mode is not performed by the second partition when operating in the second mode;wherein the second partition is configurable to start operating in the first mode instead of the second mode and to perform the function; andwherein the first partition is configurable to operate in the second mode when the second partition is operating in the first mode and the function is not performed by the first partition when operating in the second mode.17. The system of wherein:the first set of cores allocated to the first partition comprises a first core when the first partition is operating in the first mode; andthe first core is allocated to the second partition instead of the first ...

BIASING ACTIVE-STANDBY DETERMINATION

In computing systems that provide multiple computing domains configured to operate according to an active-standby model, techniques are provided for intentionally biasing the race to gain mastership between competing computing domains, which determines which computing domain operates in the active mode, in favor of a particular computer domain. The race to gain mastership may be biased in favor of a computing domain operating in a particular mode prior to the occurrence of the event that triggered the race to gain mastership. For example, in certain embodiments, the race to mastership may be biased in favor of the computing domain that was operating in the active mode prior to the occurrence of an event that triggered the race to gain mastership. 1. A method comprising:determining that a first computing domain in a computing system did not operate in a first mode prior to occurrence of an event; and refraining, for a period of time, the first computing domain from attempting to start operating in the first mode;', 'allowing, during the period of time, the second computing domain to attempt to start operating in the first mode; and', determining, by the first computing domain, whether the second computing domain is operating in the first mode;', 'upon determining that the second computing domain is not operating in the first mode, allowing the first computing domain to attempt to operate in the first mode; and', 'upon determining that the second computing domain is operating in the first mode, causing the first computing domain to operate in a second mode different from the first mode., 'after the period of time has passed], 'upon determining that the first computing domain did not operate in the first mode prior to the occurrence of the event2. The method of wherein a set of functions is performed when operating in the first mode and not performed when operating in the second mode.3. The method of wherein a set of functions is performed when operating in the second ...

Achieving ultra-high availability using a single CPU

Techniques for achieving high-availability using a single processor (CPU). In a system comprising a multi-core processor, at least two partitions may be configured with each partition being allocated one or more cores of the multiple cores. The partitions may be configured such that one partition operates in active mode while another partition operates in standby mode. In this manner, a single processor is able to provide active-standby functionality, thereby enhancing the availability of the system comprising the processor.

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Processing tow to form tobacco smoke filter plugs and like products

Processing tow to form tobacco smoke filter plugs and like products

Processing tow to form tobacco smoke filter plugs and like products