Dynamic control of outstanding hard disk read requests for seque

Details Dynamic control of outstanding hard disk read requests for seque Dynamic control of outstanding hard disk read requests for seque

1993-09-13

1996-05-28

Kim, Matthew M.

Boots, shoes, and leggings

395474, 39520008, 364DIG1, 364DIG2, 3642281, 3642481, 3642362, 364251, 364252, G06F 1200

Patent

active

055220541

ABSTRACT:
Computer system which varies the number of read requests outstanding to hard disk drives based on the mix of sequential and random requests. If a sequential request is received, a limited number of requests are allowed to be outstanding. If the requests are random, a growing number of read requests can be outstanding as the random requests continue, until a maximum number of write requests are allowed to be outstanding.

REFERENCES:
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patent: 4831622 (1989-05-01), Porter et al.
patent: 4937788 (1990-06-01), Harada
patent: 5133060 (1992-07-01), Weber et al.
patent: 5235692 (1993-08-01), Ayres et al.
patent: 5325509 (1994-06-01), Lautzenheiser
patent: 5392445 (1995-02-01), Takamoto et al.
PC User (ISA SCSI host adaptors), n207, p. 96(11) Mar. 24, 1993.

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