HP XP P9000 Command View Advanced Edition Software - Manual (Page 72)

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 be viewed (see the HP P9000 Command View Advanced Edition Suite
Software Administrator Guide):
• IOPS throughput 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
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
• Expanding THP/Smart volumes and reclaiming zero pages
By creating tiers of volumes or THP/Smart pools based on use or performance, you can migrate data
to volumes or THP/Smart pools that match the relevant conditions simply by specifying a tier as the
migration target.
Reading the reports for logical groups displayed in the Mobility tab
The following ranking reports for logical groups are displayed in the Mobility tab:
• Bottom 10: Logical Groups with High Response Time
Checks for logical groups including volumes whose response time is slow. Used to determine lo-
gical groups which do not satisfy required performances. This ranking is displayed only when you
have the license for HP StorageWorks P9000 Performance Advisor software.
• Top 10: Logical Groups with Lowest Unused Capacity
Checks for logical groups that have little unused capacity left for the allocated THP/Smart volumes.
Used to determine logical groups which do not have enough capacity.
• Top 10: Logical Group Used Capacity by Drive Types
Setting up and operating a SAN environment 72