HP XP Array Manager Software User Manual
Page 181
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 XP7 Performance Advisor, 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 XP7 Performance Advisor, see the HP XP7 Command View Advanced
Edition Administrator Guide.
NOTE:
If HP XP7 Performance Advisor is not linked, or information cannot be obtained due to storage system
type, or the software version, hyphens are displayed in performance information columns.
From the Mobility tab, the following operations can be performed to optimize data placement:
•
Configuring and editing of a Smart Tiers Software tiering policy
•
Migrating volumes
•
Manually starting or stopping the monitoring and relocation of Smart pools
•
Editing tier relocation of Smart volumes
•
Expanding, shrinking, or changing settings for THP/Smart pools
•
Expanding THP/Smart volumes and reclaiming zero pages
•
Referencing trend charts, which indicate capacity data and performance data for THP/Smart
pools, and exporting data to CSV files
User Guide
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