Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 27, 2009
Patent Application Number
11138278
Date Filed
May 27, 2005
Patent Primary Examiner
Patent abstract
A RAID apparatus that at least duplicates identical data to store thus duplicated data, which, when an instruction of writing data is given, writes data to a local cache and to a mirror cache, and writes data of the local cache to a primary disk and writes data of the mirror cache to a secondary disk. When an instruction of reading out data is given, and specified data is retained in the caches, the RAID apparatus outputs valid data of the local cache or the mirror cache, while when specified data is not retained in the caches, the RAID apparatus outputs valid data of the primary disk or the secondary disk.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
