HP XP7 Command View Advanced Edition User Guide (TK981-96007, May 2014)

Optimizing data placement in a THP/Smart pool

Data placement can be optimized in a THP/Smart pool.

Prerequisites

• A Tiered Storage Manager license must be registered.

• An HP XP7 Performance Advisor license must be registered (when referencing performance inform-

ation).

• Ensure that Smart pools are being monitored (when referencing Performance Utilization, IOPS for

a hardware tier, or View Tier Properties).

1. From the tree view of the Mobility tab, select THP Pools.

2. Select THP Pool to check for THP/Smart pools whose usage rate, reservation rate, or performance

usage rate is high.

3. If a THP/Smart pool does not meet the expectations for capacity or performance, click the link

of the THP/Smart pool in the ranking.

4. Check the usage status and performance of each hardware tier in the THP/Smart pools by

performing the following:

• To check if the usage capacity of the THP pool is appropriate, from the Actions menu, select

Show Trend Chart, and then check the IOPS and usage capacity of each pool.

• To check if the configuration and performance of each hardware tier in the Smart pool is

appropriate, from the Actions menu (or from the Capacity & Performance Utilization link),

select Show Trend Chart, and then check the capacity and performance of each hardware

tier. To save the contents of the Trend Chart as a report, click Export to CSV and save the

contents as a CSV file to a location of your choice.

• To check page access distribution per average number of I/O operations, from the Actions

menu, select View Tier Properties.

5. Select the THP/Smart volumes that have a problem and optimize the data placement by clicking:

• Migrate Data

• Edit Tiering Policy

• Expand THP Volume, or one of the other buttons

6. On the Mobility tab, select THP Pools to confirm data placement optimization.