Prerequisites for expanding thp pools, Expanding thp pools, Shrinking a thp pool – HP XP Array Manager Software User Manual

Page 31: 31 expanding thp pools, 31 shrinking a thp pool

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To verify THP pool operation conditions:

1.

On the Resources tab, select THP Pools under the target storage system.

A list of THP pools, (THP pool volumes and THP volumes), and associated information appears.
A pools summary provides summary information such as the number of pools, virtual volume
capacity, usage, and total and used capacity.

2.

Select a THP pool to display more detailed information about that pool.

Configuration information for each Smart Tiers Software volume can be displayed by clicking
the volume link from the list displayed on the THP Vols tab.

Prerequisites for expanding THP pools

Before creating THP pools, register the storage system and verify these items, depending on the storage
system:

When using XP24000/20000 and HP StorageWorks P9500 Disk Array for THP pools:

Only parity groups from which volumes have already been created can be added.

When using HP StorageWorks P9500 Disk Array for THP pools:

Only parity groups for each hardware tier from which volumes have already been created can
be added.

Expanding THP pools

You can expand a THP pool by adding volumes to the pool.

To expand a THP pool:

1.

On the Resources tab, select Storage Systems in the navigation tree.

2.

Expand the tree for the target storage system that includes the THP pool you want to expand.

3.

Select a pool and click Expand Pool.

4.

Follow the instructions to create a plan.

5.

Click Show Plan to review the plan and specify additional information, as appropriate:

• Verify the information that is displayed.
• Enter a name in Task Name.
• Specify when the task should execute.

6.

Click Submit.

The plan is registered as a task.

7.

On the Tasks & Alerts tab, confirm that the task has completed successfully.

8.

In the Storage Systems tree, return to the target storage system, click TPH Pools and confirm that
the information is updated.

Shrinking a THP pool

To shrink a THP pool:

1.

Select a THP pool's name.

2.

Expand the tree for the target storage system that includes the THP pool you want to shrink, and
select THP Pools.

User Guide

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