Systems, methods, and interfaces for adaptive persistence
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United States of America Patent
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Jun 16, 2015
Grant Date -
Aug 21, 2014
app pub date -
Apr 25, 2014
filing date -
Aug 31, 2012
priority date (Note) -
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Abstract
A storage module may be configured to service I/O requests according to different persistence levels. The persistence level of an I/O request may relate to the storage resource(s) used to service the I/O request, the configuration of the storage resource(s), the storage mode of the resources, and so on. In some embodiments, a persistence level may relate to a cache mode of an I/O request. I/O requests pertaining to temporary or disposable data may be serviced using an ephemeral cache mode. An ephemeral cache mode may comprise storing I/O request data in cache storage without writing the data through (or back) to primary storage. Ephemeral cache data may be transferred between hosts in response to virtual machine migration.
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