HP XP P9000 Command View Advanced Edition Software - Manual (Page 76)

The information displayed when each THP/Smart pool is selected is as follows:
• Summary
Summarizes information in a list, such as the total capacity and usage of THP/Smart pools, and
the reservation rate. Based on this information, you can review the usage status of the THP/Smart
pool.
If a Smart pool is selected, the following information can also be viewed:
• Tier Summary
Checks information such as drive type, drive rotational speed, and capacity usage rate of each
hardware tier. Based on this information, you can review the usage status of hardware tiers. Note
that this summary only appears for Smart pools.
• Capacity Utilization
Checks the total capacity and used capacity of the Smart pools for each hardware tier. Used to
check whether the Smart pool has the necessary capacity and which hardware tier needs more
capacity added to it. This summary only appears for Smart pools.
• Performance Utilization
Checks the ratio of actual I/O operations to the calculated maximum number of I/O operations
for each hardware tier. Used to check for hardware tiers with performance in a saturated state
requiring optimization (editing the tiering policy, or data migration). This summary only appears
for Smart pools.
• Top 10: Volumes Sharing Tier Capacity
Checks the usage ranking of volumes that have the largest use capacity in each hardware tier.
Based on this information, you can check whether data placement is appropriate, for example by
checking whether an unexpected volume is occupying a high-speed drive. This summary only
appears for Smart pools.
Optimizing data placement in a logical group
Tasks to complete beforehand:
• A Tiered Storage Manager license must be registered.
• An HP StorageWorks P9000 Performance Advisor software license must be registered (when ref-
erencing performance information).
Data placement can be optimized in a logical group.
1. From the tree view of the Mobility tab, select Logical Groups.
2. Select All Logical Groups, and in the logical group ranking, check for logical groups that are
responding late, have a small unused capacity, or have a large used capacity for each drive
type.
3. If the capacity or performance of the entire logical group is not satisfactory, click the link of the
logical group name to check the total capacity of the volumes and the used capacity of each
drive type within the logical group. If the HP StorageWorks P9000 Performance Advisor software
license is registered, click the Analyze Performance button to check performance information as
required.
4. If the balance between the logical group performance and configuration ratio is not satisfactory,
select the row of the target volume, and click either the Migrate Data button, the Edit Tiering Policy
button, or other buttons, to remedy the problem.
5. Select Logical Groups from the Mobility tab to check optimization of the data placement.
Managing storage resources in a SAN environment 76