HP XP7 User Manual page 128

1. The selection is usually Auto which allows performance monitoring and tier relocation to
be performed automatically.
If you select Manual, use the RAID Manager or Remote Web Console to manually perform
performance monitoring and tier relocation.
2. From the Cycle Time option, select the cycle for performance monitoring and tier relocation.
When you select 24 Hours (default value):
Performance monitoring and tier relocation is performed once a day
In the Monitoring Period field, set the time to start and end performance monitoring. The
default value is 00:00 to 23:59.
Set one or more hours between the starting and ending times. If you specify a starting
time that is later than the ending time, the performance monitoring continues until the
ending time on the next day.
You can view the information gathered by performance monitoring with Remote Web
Console or the RAID Manager.
When you select 0.5 Hours, 1 Hour, 2 Hours, 4 Hours, 8 Hours:
Performance monitoring is performed every hour that is selected, starting at 00:00.
You cannot set a specific time to start performance monitoring.
CAUTION:
cycle. In the next cycle, migration starts by updating information for the last processed V-VOL.
At that point, the collection of performance monitoring information is switched to the current
cycle.
17. From the Monitoring Mode option, select Period Mode or Continuous Mode.
If you perform tier relocation in a specified cycle, Period Mode is selected by default. If you
perform tier relocation weighted to the monitoring result of the past period, select Continuous
Mode
18. From the Relocation Speed option, select the page relocation speed to use when performing
relocation.
You can set the speed to: 1(Slowest), 2(Slower), 3(Standard), 4(Faster), and 5(Fastest). The
default is 3(Standard). If you want to perform tier relocation at high speed, use the 5(Fastest)
setting. If the speed specified is slower than 3(Standard), the data drive load is low when tier
relocation is performed.
19. In the Buffer Space for New page assignment text box, enter an integer value from 0 to 50
as the percentage (%) for each tier.
A default value depends on the data drive type of the pool-VOL in each tier. The default value
of SSD is 0%. The default value of a type other than SSD is 8%.
20. In the Buffer Space for Tier relocation text box, enter an integer value from2 to 40 as the
percentage (%) to set for each tier.
The default value is 2%.
21. Click Add.
The created pool is added to the Selected Pools table. If invalid values are set, an error message
appears. If Detail is clicked when you select a row, the Pool Property window appears
The Pool Type, Multi-Tier Pool,Pool Volume Selection, and Pool Name must be set. If the
required items are not registered, you cannot click Add.
If you select a row and click Detail, the Pool Properties window appears. If you select a row
and click Remove, the message appears asking whether you want to remove the selected row
or rows. If you want to remove the row, click OK.
128 Configuring thin provisioning
When Auto is set, all the V-VOL pages may not be completely migrated in one