Deleting relations in multi-target, point-in-time-copy architectures with data deduplication

摘要

A method for deleting a relation between a source and a target in a multi-target architecture is described. The multi-target architecture includes a source and multiple targets mapped thereto. In one embodiment, such a method includes initially identifying a relation for deletion from the multi-target architecture. A target associated with the relation is then identified. The method then identifies a sibling target that inherits data from the target. Once the target and the sibling target are identified, the method copies the data from the target to the sibling target. The relation between the source and the target is then deleted. A corresponding computer program product is also disclosed and claimed herein.

主权项

1. A method for deleting a relation between a source and a target in a multi-target architecture, the multi-target architecture comprising a source and a plurality of targets mapped thereto, the method comprising:
identifying a first relation for deletion from the multi-target architecture, wherein the first relation establishes a point-in-time-copy relationship between the source and a target; identifying a sibling target in a point-in-time-copy relationship with the source that inherits data from the target; copying the data from the target to the sibling target; and deleting the first relation, thereby terminating the point-in-time-copy relationship between the target and the source.