Using a forward log storage and backward log storage to recover a storage to a forward or backward point-in-time

A computer program product for managing point-in-time copies of a source storage, 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:

• copying point-in-time data of source data to a backward log storage;
• copying point-in-time data in recovery source data, comprising the source data as of a previous point-in-time, to a forward log storage;
• applying the point-in-time data in the backward log storage as of a backward point-in-time to the recovery source data copied to the forward log storage to roll back the source data to the backward point-in-time;
• and
• applying the point-in-time data in the forward log storage to the recovery source data to roll forward the recovery source data to a forward point-in-time subsequent to the backward point-in-time.

A system for managing point-in-time copies of a source storage, comprising:

• a processor;
• and
• a computer readable storage medium having program instructions embodied therewith, the program instructions executable by the processor to cause operations, the operations comprising:
• copying point-in-time data of source data to a backward log storage;
• copying point-in-time data in recovery source data, comprising the source data as of a previous point-in-time, to a forward log storage;
• applying the point-in-time data in the backward log storage as of a backward point-in-time to the recovery source data copied to the forward log storage to roll back the source data to the backward point-in-time;
• and
• applying the point-in-time data in the forward log storage to the recovery source data to roll forward the recovery source data to a forward point-in-time subsequent to the backward point-in-time.

A method for managing point-in-time copies of a source storage, comprising:

• copying point-in-time data of source data to a backward log storage;
• copying point-in-time data in recovery source data, comprising the source data as of a previous point-in-time, to a forward log storage;
• applying the point-in-time data in the backward log storage as of a backward point-in-time to the recovery source data copied to the forward log storage to roll back the source data to the backward point-in-time;
• and
• applying the point-in-time data in the forward log storage to the recovery source data to roll forward the recovery source data to a forward point-in-time subsequent to the backward point-in-time.