Techniques for producing a consistent copy of source data at...

Details Techniques for producing a consistent copy of source data at... Techniques for producing a consistent copy of source data at...

2007-12-18

2007-12-18

Nguyen, Hiep T. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

11072128

ABSTRACT:
Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, each consistency point marker indicating a point in time at which said source data is in a consistent state when a portion of said recorded file operations occurring up to said point in time is applied to said source data. The recorded file operations corresponding to said set of records are applied to said copy of the source data until a marker record corresponding to a consistency point marker is determined. Also described is a target system for producing a point in time copy of source data including a data storage device including said copy of source data and a replication service.

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