Patent ID: 9251231
Filing Date: 2016-02-02
CPC Classification: G06F

Claim Text:
1. A system, comprising: a memory; and a processor coupled to the memory, wherein the processor performs operations, the operations comprising: storing in a plurality of first data structures that indicate storage locations that need to be copied for forming a consistency group, and storing in a plurality of second data structures that indicate new host writes subsequent to starting a point in time copy operation to form the consistency group, wherein a first data structure and a second data structure are maintained in a track, and a plurality of tracks are maintained in a metadata storage area; processing each track of the metadata storage area by performing: in response to processing all of the plurality of metadata tracks maintained in the metadata storage area, setting an indicator indicating that all of the plurality of second data structures are now initialized, wherein the setting of the indicator is performed by a non-background task, wherein the updating of the first data structure with the contents of the second data structure comprises performing an OR operation of corresponding bits of the first data structure and the second data structure.