Allocation method of physical regions of a disc array to a plura

Details Allocation method of physical regions of a disc array to a plura Allocation method of physical regions of a disc array to a plura

1995-12-26

1998-09-15

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711113, 711156, 711162, 711168, G06F 945

Patent

active

058095160

ABSTRACT:
Logical blocks are allocated to a plurality of logically sequential blocks of data by referring to disc array configuration information and a list of candidate logical blocks that may be allocated, so that the drives for retaining the logical blocks assigned to the blocks of data and the drives for holding the parities for these logical blocks will be all different. Thus, a total number of drives which operate in parallel for executing sequential writes to the disc array can be increased to a maximum extent.

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D. Patterson et al., "A Case for Redundant Arrays of Inexpensive Disks (RAID)", ACM SIGMOD Conference, Jun. 1988, pp. 109-116.
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"Extent-like Performance from a UNIX File System", USENIX Winder '91, 1991, pp. 33-43.
"Disc Array Device with its Improved Performance Becomes Kernel of a Distributed System", Nikkei Electronics, No. 579, Apr. 26, 1993, pp. 77-103.

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