Konrad, Raynes, Davda and Victor LLP
Performing a recovery copy command to create a recovery volume for a consistency group
Provided are techniques for performing a recovery copy command to create a recovery volume for a consistency group. In response to receiving a recovery copy command, a recovery copy data structure is created with indicators for storage locations and a recovery target data structure is created with indicators for storage locations. In response to receiving a write operation for a storage location to a cache on a host for a recovery volume, while the recovery copy command is being processed, it is determined that data is to be staged to the cache and, based on a value of an indicator in the recovery copy data structure for the storage location and a value of an indicator in the recovery target data structure for the storage location, the data is staged from one of the production volume, the recovery volume, and a backup volume.
International Business Machines Corporation
G G G G G G G G G G G G G G G G G G
G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F G06F
inventional additional inventional inventional additional inventional inventional inventional inventional additional inventional inventional inventional additional inventional inventional additional additional
Theresa M. Nedlaya Y. Carol S. Nicolas M. Gregory E.
Brown Francisco Mellgren Clayton McBride