System for independently transferring data between a plurality o

Details System for independently transferring data between a plurality o System for independently transferring data between a plurality o

1993-11-29

1997-12-23

Lee, Thomas C.

Boots, shoes, and leggings

395825, 395839, 395840, 395861, 395299, 364243, 3642521, G06F 700, G06F 1314

Patent

active

057015139

ABSTRACT:
Upon receiving a data transfer command for a first disk drive supplied from a first host apparatus, a disk controller activates the seek operation of the first disk drive. In this state, when a second host apparatus supplies a data transfer command for a second disk drive, the disk controller 22 receives the command and activates the seek operation for the second disk drive. The disk controller 22 first executes data transfer between one of the first and second disk drives in a multi-seek operation state, which has completed the seek operation first, and the host apparatus.

REFERENCES:
patent: 4200928 (1980-04-01), Allan
patent: 4320456 (1982-03-01), Heise et al.
patent: 4413317 (1983-11-01), Swenson
patent: 4837680 (1989-06-01), Crockett et al.
patent: 4935828 (1990-06-01), Frissell
IBM Technical Disclosure Bulletin, vol. 29 No. 5. Oct. 86, "Ehanced Disk Task Sequencing"pp. 1946-1948 Oct. 1996.

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