HP XP P9000 Command View Advanced Edition Software - Manual (Page 74)

After completing these operations, check their effect from the Mobility tab and then perform any other
necessary data optimization operations. By repeating this process, the placement of data can be
optimized. The following figure shows the process of optimizing data placement.
From the Mobility tab, data placement can be optimized from either the application (logical group)
perspective or from the THP/Smart pool perspective. To respond to requests from host or application
administrators, or to confirm whether Smart pools and storage resources are being used according
to the needs of each application, check the balance between the performance and the configuration
ratio of logical groups. To regularly monitor storage resources, or if there is a problem in the analysis
of logical groups, check the balance between the performance and the configuration ratio of each
THP/Smart pool. If there is a problem, you must check the operating status of each volume in the
THP/Smart pool and then optimize the configuration.
When periodically monitoring logical groups or THP/Smart pools during routine work, check the
ranking reports in the Mobility tab so you can efficiently find logical groups or THP/Smart pools that
have problems in their operational status.
The Mobility tab can be used to check the total capacity and usage rate for each logical group, THP/
Smart pool, or each volume in a logical group or THP/Smart pool. As with Smart pools, you can also
check which volumes are using the largest proportions of each hardware tier. In addition, the following
performance information can also be viewed:
• Quantity of I/O operations compared to the calculated maximum number of I/O operations
In addition, if linked with HP StorageWorks P9000 Performance Advisor software, the following
performance information can also be viewed:
• Throughput (IOPS) for THP/Smart pools, volumes, and hardware tiers
• Past volume performance data (to look for trends)
• Response time of the volume
• Busy rate for parity groups
For details on linking to HP StorageWorks P9000 Performance Advisor software, see the HP P9000
Command View Advanced Edition Suite Software Administrator Guide.
NOTE:
If HP StorageWorks P9000 Performance Advisor is not linked, or information cannot be obtained
due to storage system type, or the HP StorageWorks P9000 Performance Advisor software version,
hyphens are displayed in performance information columns.
From the Mobility tab, the following operations can be performed to optimize data placement:
• Configuration and editing of aSmart Tiers Software tiering policy
• Migration of volumes
• Manually starting or stopping the monitoring and relocation of Smart pools
• Editing tier relocation of Smart volumes
• Expanding, shrinking, or changing of the settings for THP/Smart pools
Managing storage resources in a SAN environment 74