Efficient backup and restore using metadata mapping

Details Efficient backup and restore using metadata mapping Efficient backup and restore using metadata mapping

2005-07-15

2009-06-23

Lohn, Joshua A (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S015000, C714S020000

Reexamination Certificate

active

07552358

ABSTRACT:
A method for efficient backup and restore using metadata mapping comprises maintaining a first backup aggregation associated with a primary data object of a primary host at a secondary host, wherein the first backup aggregation includes a first backup version of the primary data object stored within a secondary data object at the secondary host. The method further comprises generating a second backup aggregation, wherein the second backup aggregation includes a second backup version of the primary data object and a backup metadata object corresponding to the secondary data object. The backup metadata object includes a pointer to the second backup version. The method may further comprise restoring the secondary data object, wherein said restoring comprises using the pointer to access the second backup version of the primary data object to restore at least a portion of the secondary data object.

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