Disk array apparatus

Details Disk array apparatus Disk array apparatus

2005-08-16

2005-08-16

Moazzami, Nasser (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S128000, C711S129000, C711S141000, C711S142000, C711S143000, C711S161000, C711S162000

Reexamination Certificate

active

06931485

ABSTRACT:
A cache memory comprises a group of cache pages which are normal data areas, and a group of work pages each for saving DIRTY data in an associated cache page. When write data transferred from a host computer is written into said cache memory, a host interface controller saves data in a portion in which a write range overlaps a DIRTY range into a work page, and retrieves the data saved in the work page to an associated cache page when a transfer of the write data is interrupted. A disk interface controller writes back the DIRTY data on said cache memory.

REFERENCES:
patent: 6105116 (2000-08-01), Mori
patent: H06-44010 (1994-02-01), None
patent: H07-210439 (1995-08-01), None
patent: H08-87450 (1996-04-01), None

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