Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2004-03-01
2008-10-07
Wong, Don (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C711S162000, C455S403000
Reexamination Certificate
active
07433899
ABSTRACT:
An apparatus, system, and method are disclosed for managing multiple copy versions of a source volume. In one embodiment, the apparatus includes a replication record management module, a pre-pairing record management module, and a copy record module. The replication record management module is configured to maintain a current replication record that is descriptive of a current copy version of the source volume. The pre-pairing record management module is configured to maintain a future pre-pairing record that is descriptive of a future copy version of the source volume. The copy record module is configured to create a copy record from a pre-copy record. The pre-copy record may be either the current replication record or the future pre-pairing record. The apparatus, system, and method beneficially maintain multiple records to describe different states for a particular copy version and dynamically handle changes to a source pool, a target pool, or both in a data copy environment.
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Pearson Anthony Steve
Valenzuela Henry Verdugo
Wilcock Glenn Randle
Ho Binh V
International Business Machines - Corporation
Kunzler & McKenzie
Wong Don
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