Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-02-27
2007-02-27
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130, C711S162000, C707S793000, C707S793000
Reexamination Certificate
active
10428204
ABSTRACT:
A host and a storage system each keep a shared identifier indicating a state of a system. The storage system acquires, at update of data, a data pair including data for a change through processing of the host and data before the update. The storage system relates the data pair to a shared identifier. When the host indicates an identifier, the storage system restores data using the data pair.
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USSN 09/588,242, filed Jun. 6, 2000 to Lloyd Alan Poston.
Arai Kouji
Eguchi Yoshiaki
Mogi Kazuhiko
Oeda Takashi
Yamamoto Yasutomo
Beausoliel Robert
Guyton Philip
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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