Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2005-08-09
2005-08-09
Anderson, Matthew D. (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S145000, C711S114000
Reexamination Certificate
active
06928521
ABSTRACT:
Disclosed is a method, system, and data structures for updating data in a storage device. An update to one or more blocks of customer data at addresses in the storage device is received. For each block of data to update, metadata is generated indicating the address of the block in the storage device and an error checking code that is capable of being used to determine whether the customer data in the block has changed. For each block of data to update, the block of data to update and the metadata for the block are written to cache. Further, for each block of data to update, the block of data and the metadata are transferred for the block from the cache to the storage device. The metadata may be used during power loss and recovery.
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IBM Technical Disclosure Bulletin, “Profiling Technique for Memory References Within Individual Pages on Paging-Based Virtual Memory Systems”, vol. 35, No. 3, Aug. 1992, pp. 320-325.
Burton David Alan
Fujita Norio
Morton Robert Louis
Nakase Koji
Anderson Matthew D.
Konrad Raynes & Victor LLP
Victor David W.
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