Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-12-19
2006-12-19
Le, Debbie M. (Department: 2168)
Data processing: database and file management or data structures
Database design
Data structure types
C711S161000, C711S162000
Reexamination Certificate
active
07152078
ABSTRACT:
The present invention provides techniques for managing storage based replication. Specific embodiments provide techniques for performing system backup and restoring. In specific embodiments, benefits such as keeping a remote mirror between a primary volume and a secondary volume in operation can be provided. Since the remote mirror is usually used for disaster recovery purposes, where the mirrors must be always in-sync state, being able to take a backup without breaking the remote mirror can help provide a constant duplicate copy of production information in case of emergency, for example. Further, in some embodiments, a user can take backups of more than one generation by setting up two or more secondary volumes (SVOLs) for one primary volume (PVOL).
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Hitachi , Ltd.
Le Debbie M.
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