Konrad Raynes Davda & Victor LLP
Point in time copy operations from source volumes to space efficient target volumes in two stages via a non-volatile storage
A request is received to perform a point in time copy operation from a source volume to a space efficient target volume. A controller copies data stored in a group of data storage units, from the source volume to a non-volatile storage, to preserve the point in time copy operation. A background process asynchronously copies the data from the non-volatile storage to the space efficient target volume to commit a physical point in time copy of the data from the source volume to the target volume.
INTERNATIONAL BUSINESS MACHINES CORPORATION
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inventional inventional inventional additional
Nedlaya Y. Suguang Theresa M. Beth A.
Francisco Li Brown Peterson