Changing the MP Unit of an external volume

Prerequisites

• You must have Storage Administrator (Provisioning) role to perform this task.

Procedure

1. Open the External Storage window.

In the Hitachi Command Suite:

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

2. Expand the target storage systems, right-click External Storage, and then select System GUI.

In Device Manager - Storage Navigator:

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

2. Click External Storage.

2. On the External Storage Systems tab, click the link for an external system.

3. On the External Path Groups tab, click the link for a path group.

4. On the Mapped Volumes tab, select one or more external volumes, and then select More Actions > Assign MP Unit.

5. In the Assign MP Unit window, select the desired MP Unit ID.

The current setting for the external volume displays, unless you have selected multiple external volumes with different values. Then the field is blank.

The choices you see are dependent on the configuration of the device.

 MP unit assignment should be set to evenly distribute work across all the available processors.

Selecting Auto allows the system to assign the blade.

6. Click Finish.

7. In the Confirm window, check settings, accept or enter a new task name, and then click Apply.

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