Subsystems and an integrated system of these subsystems

Details Subsystems and an integrated system of these subsystems Subsystems and an integrated system of these subsystems

2006-10-31

2006-10-31

Elmore, Reba I. (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S113000, C711S161000, C711S162000

Reexamination Certificate

active

07130959

ABSTRACT:
A disk subsystem assures the sequence and the coherence of data updating with two or more disk subsystems is provided with an asynchronous remote copy function. A main center9includes a computer system having the configuration of slave subsystems3-2to3-nconnected with a master disk subsystem3-1. It secures the coherence between data at the main center9and the remote center10at the temporary suspension by repeating temporary suspension and release of the temporary suspension of the remote copy by the master subsystem3-1at predetermined opportunities. It also repeats temporary suspension and release of the temporary suspension of the remote copy by slave subsystems3-2to3-nconnected to it.

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