System to reduce drive overhead using a mirrored cache volume in a storage array
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United States of America Patent
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Mar 20, 2012
Grant Date -
Oct 22, 2009
app pub date -
Apr 2, 2009
filing date -
Apr 22, 2008
priority date (Note) -
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Abstract
A system comprising a host, a solid state device, and an abstract layer. The host may be configured to generate a plurality of input/output (IO) requests. The solid state device may comprise a write cache region and a read cache region. The read cache region may be a mirror of the write cache region. The abstract layer may be configured to (i) receive the plurality of IO requests, (ii) process the IO requests, and (iii) map the plurality of IO requests to the write cache region and the read cache region.
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