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Create snapshot consistency group

To ensure that you have consistent copies, you can create a set of multiple volumes called a snapshot consistency group. This group allows you to make snapshot images of all the volumes at the same time for consistency. Each volume that belongs to a snapshot consistency group is referred to as a member volume. When you add a volume to a snapshot consistency group, the system automatically creates a new snapshot group that corresponds to this member volume.

About this task

The snapshot consistency group creation sequence lets you select member volumes for the group and allocate capacity to the member volumes.

The process to create a snapshot consistency group is a multi-step procedure.

  1. Step 1: Add members to snapshot consistency group
    Select members to specify a collection of volumes that comprise the snapshot consistency group. Any actions you perform on the snapshot consistency group extend uniformly to selected member volumes.
  2. Step 2: Reserve capacity for snapshot consistency group
    Associate reserved capacity to the snapshot consistency group. System Manager suggests the volumes and capacity based on the properties of the snapshot consistency group. You can accept the recommended reserved capacity configuration or customize the allocated storage.
  3. Step 3: Edit settings for snapshot consistency group
    Accept or choose automatic deletion settings and reserved capacity alert thresholds for the snapshot consistency group.