Inventor
MENON JAISHANKAR M
US20 patents
Patents
20 patentsUS5579475ANov 26, 1996
Method and means for encoding and rebuilding the data contents of up to two unavailable DASDS in a DASD array using simple non-recursive diagonal and row parity
IBM230 citations99
US5551003AAug 27, 1996
System for managing log structured array (LSA) of DASDS by managing segment space availability and reclaiming regions of segments using garbage collection procedure
IBM381 citations98
US5542066AJul 30, 1996
Destaging modified data blocks from cache memory
IBM198 citations98
US5488701AJan 30, 1996
In log sparing for log structured arrays
IBM107 citations98
US5271012ADec 14, 1993
Method and means for encoding and rebuilding data contents of up to two unavailable DASDs in an array of DASDs
IBM200 citations98
US5258984ANov 2, 1993
Method and means for distributed sparing in DASD arrays
IBM166 citations98
US5416915AMay 16, 1995
Method and system for minimizing seek affinity and enhancing write sensitivity in a DASD array
IBM108 citations97
US5574882ANov 12, 1996
System and method for identifying inconsistent parity in an array of storage
IBM305 citations96
US5485571AJan 16, 1996
Method and apparatus for providing distributed sparing with uniform workload distribution in failures
IBM70 citations96
US5375128ADec 20, 1994
Fast updating of DASD arrays using selective shadow writing of parity and data blocks, tracks, or cylinders
IBM105 citations96
US5301297AApr 5, 1994
Method and means for managing RAID 5 DASD arrays having RAID DASD arrays as logical devices thereof
IBM204 citations96
US5459853AOct 17, 1995
Efficient variable-block data storage system employing a staggered fixed-block-architecture array
IBM91 citations94
US5202799AApr 13, 1993
Logical data tracks extending among a plurality of zones of physical tracks of one or more disk devices
IBM62 citations94
US5418921AMay 23, 1995
Method and means for fast writing data to LRU cached based DASD arrays under diverse fault tolerant modes
IBM109 citations93
US5506979AApr 9, 1996
Method and means for execution of commands accessing variable length records stored on fixed block formatted DASDS of an N+2 DASD synchronous array
IBM44 citations92
US5283884AFeb 1, 1994
CKD channel with predictive track table
IBM52 citations92
US5257362AOct 26, 1993
Method and means for ensuring single pass small read/write access to variable length records stored on selected DASDs in a DASD array
IBM52 citations92
US5577211ANov 19, 1996
System and method using chained structure queues for ordering of message delivery between connected nodes wherein unsuccessful message portion is skipped and retried
IBM36 citations91
US5263145ANov 16, 1993
Method and means for accessing DASD arrays with tuned data transfer rate and concurrency
IBM96 citations90
US5706443AJan 6, 1998
Method and apparatus for enabling pipelining of buffered data
IBM7 citations72