HIGH AVAILABILITY PROTECTION FOR ASYNCHRONOUS DISASTER RECOVERY

HIGH AVAILABILITY PROTECTION FOR ASYNCHRONOUS DISASTER RECOVERY

A computer-implemented method, carried out by one or more processors, for a modified asynchronous replication session. In an embodiment, the method comprises the steps of acquiring a lock on a volume configuration, where the lock prevents changes to the volume configuration between a first volume an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DIEL EDUARD A, GUNDY LISA J, CROCKETT ROBERT N, SHACKELFORD DAVID M
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A computer-implemented method, carried out by one or more processors, for a modified asynchronous replication session. In an embodiment, the method comprises the steps of acquiring a lock on a volume configuration, where the lock prevents changes to the volume configuration between a first volume and a second volume at a remote site. Internal control block information is updated, where the update includes at least a volume serial number of the first volume matching a volume serial number of the second volume. Responsive to updating internal control block information, the acquired lock is released to allow changes to the volume configuration.