Boots – shoes – and leggings
Patent
1990-05-24
1993-11-16
Chun, Debra A.
Boots, shoes, and leggings
395575, 364DIG2, 364964, 3649521, 3649593, 3649571, G06F 1202
Patent
active
052631451
ABSTRACT:
A method and means for managing access to a logical track of KN blocks of which K are parity blocks. The KN blocks are distributed and stored in an array of N DASDs having K blocks per physical track per DASD. The array includes control means for securing synchronous access to selectable ones of the DASDs responsive to each access request. The method involves (a) formatting the blocks onto the array using a row major order modulus as the metric for balancing the data rate and concurrency (the number of DASDs bound per access) and (b) executing the random sequences of large and small access requests over the array.
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Patterson et al, "A Case for Redundant Arrays of Inexpensive Disks (Raid)", ACM SIGMOD Conference, Chicago, Illnois.
Brady James T.
Cintron Ruth E.
Goldstein Stephen
Menon Jaishankar M.
Wang Ju Jean H.
Brodie R. Bruce
Chun Debra A.
International Business Machines - Corporation
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