Splitting Thin Image pairs to store snapshot data

This topic explains how to split pairs. Splitting pairs stores snapshot data. You can store a maximum of 1,024 snapshots from a P-VOL. If you reach the maximum, delete the unneeded or unused snapshots.

Prerequisites:

• You have the Storage Administrator (Local Copy) role.

• The HTI pair status is “PAIR”.

1. Navigate to the Local Replication window.

In Hitachi Command Suite:

1. On the Resources tab, click Storage Systems, and then expand the storage system tree.

2. Right-click the target storage system, and then select Local Replication.

In Device Manager - Storage Navigator:

1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.

2. In the Local Replication window, select a P-VOL in the TI Primary Volumes tab or a snapshot group in the Snapshot Groups tab.

3. From the Action menu, select Local Replication > Operate TI Pairs.

4. In the TI Pairs window, select the pair you want to split, and then click Split Pairs.

 You can specify up to 32 P-VOLs using HDvM - SN.

5. Click Finish.

6. In the Confirm window, complete the following.

• Confirm the settings.

• Enter a name for your task in Task Name.

• (Optional) Select Go to tasks window for status if you want the Tasks window to open after you click Apply.

7. Click Apply.

The task is registered, and if the Go to tasks window for status check box was selected, the Tasks window appears.

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