Workflow for creating groups and storing snapshot data using RAID Manager

You can use RAID Manager raidcom commands to create a consistency or snapshot group and to split pairs to store the snapshot data for the group.

With Thin Image, ShadowImage, and ShadowImage for Mainframe, you can create up to 2,048 consistency groups in a VSP family storage system.

The following figure illustrates how snapshot data is stored for a consistency or snapshot group using RAID Manager raidcom commands.

Use the following workflow to create a snapshot group and store volume snapshot data in the group:

1. Split the pair and store snapshot data for a group. To do this using RAID Manager, run the following raidcom command:

   raidcom modify snapshot -snapshot_data create

2. The host issues a write request to each P-VOL in the group.

   Snapshot data for the volumes are stored.

A RAID Manager command is used to store snapshot data for a consistency group or a snapshot group. Device Manager - Storage Navigator can only be used to reference consistency groups and snapshot groups.

Related Concepts

• 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.

Related Tasks

• Creating Thin Image pairs using Device Manager - Storage Navigator

  You can create a Thin Image pair and define the pair in a consistency group. You can create 1,024 Thin Image pairs at the same time for , and 32,768 for VSP G100, G200, G400, G600, G800. To create more than 1,024 (or 32,768) pairs, repeat this task.

• Removing Thin Image snapshot groups

  You can remove snapshot groups by deleting all of the pairs in the group. Remove snapshot groups before performing the next pair task.

Related References

• Pair tasks using RAID Manager or Device Manager - Storage Navigator

  You can use RAID Manager as well as Device Manager - Storage Navigator (HDvM - SN) to perform pair tasks. When you use RAID Manager, perform tasks by running an existing command for pair tasks or a RAID Manager command.

Parent Topic

• How Thin Image works

  This topic explains how Thin Image works.