Creating a CLPR

 Creating CLPRs can significantly degrade host performance and should be performed during the initial installation and setup of the storage system or during a maintenance window.

Before creating a CLPR, read Cautions and restrictions for Virtual Partition Manager.

If no CLPRs have been created, the entire cache is displayed as CLPR0. When the first CLPR is created, CLPR1 is added. You can create up to CLPR9 for VSP G200, CLPR23 for VSP G400, and CLPR31 for VSP G600 and VSP G800.

The default cache capacity is 4 GB. CLPRs can be created by assigning the necessary capacity from CLPR0.

Prerequisites

• Required role: Storage Administrator (System Resource Management)

Procedure

1. Display the Cache Partitions window.

In Device Manager - Storage Navigator:

1. Select Administration in Explorer, and select Cache Partitions in the tree to open the Cache Partitions window.

In Command Suite:

1. Select the Resources tab, and expand the Storage Systems tree.

2. Click Cache Partitions and open the Cache Partitions window.

2. Click Create CLPRs to open the Create CLPRs window. CLPR ID displays the first available CLPR ID or a blank if no CLPR ID is available.

3. In CLPR Name, enter the CLPR name (maximum 16 alphanumeric characters). Each CLPR name must be unique. You cannot use a CLPR name that is already reserved. If no CLPR ID is available, a blank is displayed.

4. In Cache Size, select the cache capacity. If no CLPR ID is available, a blank is displayed.

The default size is 4 GB, and you can select 4 GB or higher value in increments of 2 GB. The maximum available capacity (subtracted the total usage capacity of other CLPRs from the total capacity of the storage system) is displayed as the upper limit value.

5. Click Add. The created CLPR is added to the Selected CLPRs table.

To delete a CLPR from the Selected CLPRs table, select the CLPR and click Remove. To change the settings of an existing CLPR, select the CLPR and Change Settings to open the Change Settings window.

6. Click Finish.

7. Check the settings in the Confirm window, enter the task name in Task Name, and click Apply.

If Go to tasks window for status is checked, the Tasks window opens.

After creation, a CLPR has no resources (parity groups). To migrate resources to the new CLPR, see Migrating resources to and from a CLPR.

Related topics

• Create CLPRs wizard

• Change Settings window

• Migrating resources to and from a CLPR

• Editing the settings of an existing CLPR