Method and system for high speed buffer storage management RAID storage system

Application Number  00129215 Application Date  2000.09.28
Publication Number  1290890 Publication Date  2001.04.11
Priority Information   1999/10/1 US 09/410,499  
Applicant(s) Name  International Business Machine Corp.  
Inventor(s) Name  Brews Mcnewt  
Patent Agency Code  11038 Patent Agent  yu jing
AbstractA computer system has a host computer that runs applications that require data objects from a storage system. The storage system has a storage device, such as a disk storage device, and a cache memory. Data objects that are frequently used by the host computer are stored in the cache memory. The data objects are also stored in the storage device logically arranged in segments of data objects, and groups of segments. The cache memory is logically partitioned into a segment cache and a group cache. Data of a small granular nature namely segments, are stored in the segment cache.