Storage apparatus, relay device, and method of controlling operating state
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 23, 2013
Grant Date -
Aug 13, 2009
app pub date -
Oct 31, 2008
filing date -
Feb 7, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Each time any one of HDDs is accessed, a corresponding relationship between the disk address of the accessed HDD and the time information indicating a time at which the HDD is accessed is added to a first operating-state management table. When a corresponding relationship with the same disk address already exists in the first operating-state management table, the time information is updated. When the first operating-state management table has no space available for new entry, corresponding relationships are deleted from the one having the oldest time information. Only HDDs of which disk address is recorded in the first operating-state management table is turned on.
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