Method and apparatus for backup and recovery system using...

Details Method and apparatus for backup and recovery system using... Method and apparatus for backup and recovery system using...

2006-09-19

2006-09-19

Kim, Matthew (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S159000, C707S793000

Reexamination Certificate

active

07111136

ABSTRACT:
A storage system maintains a journal of journal entries and at least one snapshot of one or more data volumes. By assigning a unique sequence number to journal and snapshot, it is easy to find a journal which can be applied to the snapshot. A technique is described for detecting an overflow condition of running out of journal space and recovering the journal space.

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