Data processing: database and file management or data structures – File or database maintenance – Synchronization
Reexamination Certificate
2011-07-19
2011-07-19
Pannala, Sathyanarayan (Department: 2164)
Data processing: database and file management or data structures
File or database maintenance
Synchronization
Reexamination Certificate
active
07984016
ABSTRACT:
Changes such as write operations on a replication source comprising a hierarchically-indexed file system and associated data store are tracked and aggregated over a point-in-time image replication interval and communicated to a replication target. The replication target receives the changes, conducts operations to make the changes on a target volume or portion thereof, and conducts a point-in-time image replication operation to synchronize the replication target with the replication source. In the present invention the advantages of replication techniques developed for log-structured file systems are provided to systems with conventional hierarchical file systems. The invention also facilitates maintaining point-in-time retrievable images of a volume or portion thereof on a target volume while reducing the bandwidth and processing burden associated with replication.
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International Business Machines - Corporation
Kunzler Needham Massey & Thorpe
Pannala Sathyanarayan
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