Consistency and snapshot groups

Consistency groups and snapshot groups are groups of pairs for which you can simultaneously perform pair tasks on all pairs within the group.

Use consistency groups to split the Thin Image pairs that are defined in the group. Splitting the pairs using the group assures data consistency at the time the storage system receives the request.

A snapshot group is a group of only Thin Image pairs. Use consistency or snapshot groups to perform Thin Image tasks on all of the pairs within the group. You define Thin Image pairs to a snapshot group when you create the pairs.

The following table shows the differences between consistency groups and snapshot groups.