Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-12-11
2007-12-11
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130, C709S224000
Reexamination Certificate
active
11542247
ABSTRACT:
The present invention is directed to a heartbeat apparatus via a remote mirroring link for a multi-site and a method for using the heartbeat apparatus. Information is registered in a configuration table, wherein the configuration table stores host ID information and volume ID information. The configuration table is configured, access requests from a host are verified, host activity is recorded, and additional records are created in the configuration table when a match is found between the access records and the registered information. In a multi-site having two, three or more sites in a multi-hoop configuration, a failover process with remote mirroring pairs is performed by configuring a correlation between a remote mirroring pair group, an activity monitor function and an alert function, wherein the alert function is performed by a host sending status information regarding activity monitoring in a storage system and retrieving the notification information via a plurality of data links, and creating a status manage table using the notification information.
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A. Marquez, Esq. Juan Carlos
Beausoliel Robert
Fisher Esq. Stanley P.
Guyton Philip
Hitachi , Ltd.
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