Deleting a pool

For the pool that owns DP-VOL with a disabled data direct mapping attribute, if pool-VOL is released after the pool shrinking, the released pool-VOLs (LDEVs) will be blocked.

If the pool-VOLs are blocked, they must be formatted before they can be reused. If the blocked pool-VOL is an external volume, select Normal Format when formatting the volume. You can delete a pool only when all of the DP-VOLs have been deleted.

Before you begin

• The Storage Administrator (Provisioning) role is required to perform this task.

• Prerequisites for deleting pools with deduplication enabled:

• DP-VOLs with Deduplication and Compression enabled must not be assigned to an operation target pool.

• For an operation target pool, the value of Deduplication or Saving Effect > Deduplication (%) must be 0%.

Procedure

1. Open the Pools window.

In Command Suite:

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

2. Right-click DP Pools, and then select System GUI.

In Device Manager - Storage Navigator:

1. Click Storage Systems, and then expand the Storage Systems tree.

2. Click Pools.

2. From the Pools table, select the pool to be deleted.

3. Click More Actions, and then select Delete Pools.

The Delete Pools window opens.

You cannot delete a pool if the pool usage is not 0%, or a pool for which DP-VOLs are assigned.

4. Click Finish.

The Confirm window opens.

To continue with the shredding operation and delete volume data, click Next. For details about the shredding operation, see the Volume Shredder User Guide.

If the pool is blocked, you might not be able to perform shredding operations.

5. In the Task Name text box, type a unique name for the task or accept the default.

You can enter up to 32 ASCII characters and symbols, with the exception of: \ / : , ; * ? " < > |. The value "date-window name" is entered by default.

6. Click Apply.

If the Go to tasks window for status check box is selected, the Tasks window appears.

 When the pool-VOLs of a pool are empty, the appropriate tier is deleted.