Patent ID: 9569122
Date: 2017-02-14
CPC Classifications: G06F

Claim:
1. A method for generating transaction aware snapshots, the method comprises: starting a creation of a certain point in time snapshot for a consistency group that comprises at least one logical volume; detecting that at the certain point in time there is an uncompleted transaction for writing multiple information units to the consistency group; the uncompleted transaction started at a transaction start point in time that precedes the certain point in time; preventing an access to the certain point in time snapshot until a completion of the uncompleted transaction; associating the multiple information units with at least the certain point in time snapshot, so as to include a content of the multiple information units as part of the certain point in time snapshot; and allowing access to the certain point in time snapshot, after the associating of the multiple information units with the at least the certain point in time snapshot.