Execution of point-in-time copy operations in continuous...

Details Execution of point-in-time copy operations in continuous... Execution of point-in-time copy operations in continuous...

2007-06-14

2010-06-08

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S161000, C711SE12103

Reexamination Certificate

active

07734885

ABSTRACT:
Provided are a method, system, and article of manufacture wherein a point-in-time copy operation command for a point-in-time copy of a point-in-time source volume to a point-in-time target volume is received while performing continuous copy operations from continuous copy source volumes to continuous copy target volumes. A determination is made as to whether the point-in-time target volume is a first continuous copy source volume and whether the point-in-time source volume is a second continuous copy source volume. A determination is made of metadata corresponding to the point-in-time copy operation, in response to determining that the point-in-time target volume is the first continuous copy source volume and the point-in-time source volume is the second continuous copy source volume. Point-in-time copy operations are performed on the continuous copy target volumes based on the determined metadata to execute the point-in-time copy operation command while performing the continuous copy operations.

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