Migrating local cache state with a virtual machine

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United States of America Patent

PATENT NO 9354918
APP PUB NO 20150229717A1
SERIAL NO

14176202

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Abstract

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Embodiments relate to migrating a local cache state with a virtual machine (VM) migration. An aspect includes detecting that a VM executing on a source host machine has been paused as part of a migration of the VM from the source host machine to a target host machine. A state of a first local cache associated with the VM is identified. The first local cache is accessible by the source host machine and includes data previously fetched from a shared storage. Pre-fetch hints that are based on the state of the first local cache are sent to the target host machine prior to the migration completing. The pre-fetch hints are utilized by the target host machine to fetch, from the shared storage, at least a subset of the data stored in the first local cache for storage in a second local cache accessible by the target host machine.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gupta, Aayush San Jose, US 42 300
Hafner, James L Pacific Grove, US 42 1386

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