HP XP P9000 Command View Advanced Edition Software - Manual (Page 52)

5. View the list of tasks to make sure that all tasks are complete.
TIP:
If a data placement profile and a tiering policy are being used concurrently, the capacity ratio of Tier
1 might exceed the value specified for the maximum allocation threshold.
Customizing a tiering policy for Smart volumes
You can set the value for the allocation threshold of a hardware tier. When a tiering policy is specified
for Smart volumes, make sure changing the definition will not cause a problem.
Tasks to complete beforehand:
• A Tiered Storage Manager license must be registered (if the operations described in this topic will
be performed from the Mobility tab).
Information to check beforehand:
• Check the definition of the tiering policy to be changed.
1. From the tree view in the Resources tab, select Storage Systems.
Note that you can also perform these operations from the Mobility tab.
2. Expand the tree, and under the applicable storage system, select THP Pools.
3. In the Tiering Policies tab, select a tiering policy to change, and click Customize Tiering Policy.
4. Specify the required items, and then execute the task.
From the Resources tab, by selecting THP Pools and then the Tiering Policies tab, you can verify that
the definition of the tiering policy was changed.
Notes on data placement profiles for Smart volumes
When using data placement profiles for Smart volumes, it is useful to understand the following:
• Data placement profiles are applied only to pages placed in Tier 1 of Smart pools.
• For pages to which both a data placement profile and tiering policy are set, the settings of the
profile are prioritized.
• After the monitoring and data relocation of Smart pools are performed, a data placement is re-
stored. Therefore, users need to determine the timing at which to apply a profile by taking into
account the period during which the monitoring and data relocation are performed.
• When performing a create, update, apply, or release of a data placement profile, or when
searching for or repairing an inconsistency in a data placement profile, users cannot perform
other operations for the target storage system.
• A task to create, update, apply, or release a data placement profile or to search for or repair an
inconsistency in a data placement profile takes time to complete after it is executed. This time
might affect other operations, so make a plan based on the displayed time estimate. Keep in mind
that the larger the number of target volumes, the more likely that the estimated time and the actual
execution time will differ greatly. You can also stop tasks that are being executed.
• Regardless of the allocated resource groups, data placement profiles created by another user can
also referenced in the list of profiles. However, operation that can be performed on such profiles
are restricted based on the allocated resource group and role.
• If the number of managed data placement profiles exceeds 200, displaying the profile list might
take some time. In this case, set the [Rows/page] of the profile list to no more than 100.
Setting up and operating a SAN environment 52