Working with thp v-vols, About thp v-vols – HP XP P9500 Storage User Manual
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2.
From Cycle Time list, select the cycle of 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, specify the time of starting and ending of performance
monitoring in 00:00 to 23:59 (default value).
Take one or more hours between the starting time and the ending time. If you specify the
starting time later than the ending time, the performance monitoring continues until the
time when you specify as the ending time on the next day.
You can view the information gathered by performance monitoring with Remote Web
Console and RAID Manager.
When you select any of 0.5 Hours, 1 Hour, 2 Hours, 4 Hours or 8 Hours:
Performance monitoring is performed every hour you selected starting at 00:00.
You cannot specify the time of performance monitoring.
Caution: When Auto is set, all the V-VOL pages may not be completed migrating by one
cycle. At the next cycle, the last processed V-VOL will start being migrated with the updated
information. However, the performance monitoring information is switched.
14. From the Monitoring Mode option, select Period Mode or Continuous Mode.
If you perform the tier relocation with the specified cycle or you do not need to specify the
Monitoring Mode option, select Period Mode. If you perform the tier relocation weighted to
the past period monitoring result, select Continuous Mode.
15. In the Buffer Space for New page assignment text box, enter an integer value from 0 to 50
as the percentage (%) to set for each tier.
A default value depends on the hard disk drive type of pool-VOL in each tier. The default
value of SSD is 0%. The default value of the type other than SSD is 8%.
16. In the Buffer Space for Tier relocation textbox, enter an integer value from 2 to 40 as the
percentage (%) to set for each tier.
A default value is 2%.
17. Click Add.
The created pool is added to the right Selected Pools table. If invalid values are set, an error
message appears.
The Pool Type, Multi-Tier Pool, Pool Volume Selection and Pool Name field must be set. If these
required items are not registered, you cannot click Add.
18. Click Next.
The Create LDEVs window appears. Go to
to create LDEVs.
If Subscription Limit for all the created pool is set to 0%, the Create LDEVs window does not
appear.
To finish the wizard, click Finish. The Confirm window appears.
19. In the Confirm window, click Apply to register the setting in the task.
If the Go to tasks window for status check box is selected, the Tasks window appears.
Working with THP V-VOLs
About THP V-VOLs
Thin Provisioning requires the use of THP V-VOLs, which are virtual volumes with no physical
memory space. In Thin Provisioning, multiple THP V-VOLs can be created.
Working with THP V-VOLs
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