CREATING A RESTORE COPY FROM A COPY OF A FULL COPY OF SOURCE DATA IN A REPOSITORY THAT IS AT A DIFFERENT POINT-IN-TIME THAN A RESTORE POINT-IN-TIME OF A RESTORE REQUEST

摘要

Provided are a computer program product, system, and method for creating a restore copy from a copy of a full copy of source data in a repository that is at a different point-in-time than a restore point-in-time of a restore request. A repository has a full copy of source data as of a full copy point-in-time and for each of a plurality of point-in-time copies at different point-in-times of the source data, change information indicating changed data in the source data that changed between the point-in-time of the point-in-time copy and a subsequent point-in-time, and changed point-in-time data comprising data in the source data as of the point-in-time of the point-in-time copy indicated in the change information as changed. A point-in-time copy of the full copy is created in response to a restore request and returned as a restore copy to the restore request.

主权项

1. A computer program product for maintaining source data in a repository, wherein the computer program product comprises a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause operations, the operations comprising:
maintaining a repository having a full copy of source data as of a full copy point-in-time and for each of a plurality of point-in-time copies at different point-in-times of the source data, change information indicating changed data in the source data that changed between the point-in-time of the point-in-time copy and a subsequent point-in-time, and changed point-in-time data comprising data in the source data as of the point-in-time of the point-in-time copy indicated in the change information as changed; receiving a restore request to restore the source data as of a restore point-in-time different from the point-in-time of the full copy; creating a point-in-time copy of the full copy; and returning the created point-in-time copy of the full copy as a restore copy to the restore request, wherein the restore copy has data as of a restore copy point-in-time comprising the point-in-time copy of the full copy which is different from the restore point-in-time.