HP XP P9500 Storage - Manual (Page 113)

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 text box, 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, Smart Pool, Pool Volume Selection and Pool Name field must be set. If these
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, a message appears asking whether you want to remove the selected row
or rows. If you want to remove the row, click OK.
18. Click Next.
The Create LDEVs window appears. Go to “Creating V-VOLs” (page 113) 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 you select a row and click Detail, the Pool Properties window appears.
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 Z requires the use of THP V-VOLs, which are virtual volumes with no physical
memory space. In Thin Provisioning Z, multiple THP V-VOLs can be created.
A THP V-VOL is a volume in a thin provisioning storage system. It is the virtual volume from a THP
pool. Data in the THP pool is used via a THP V-VOL. A THP V-VOL is a virtual LU to some hosts.
On mainframe systems, 3390-A is the supported emulation type on a THP V-VOL.
Relationship between a pool and THP V-VOLs
Before you can use Thin Provisioning Z, a THP V-VOL and a pool are required. Thin Provisioning
Z uses the pool volumes in a pool through the THP V-VOLs.
Creating V-VOLs
You can create a THP V-VOL from any of the following tabs:
•
The LDEVs tab, which appears when Logical Devices is selected.
•
The Pools tab, which appears when Pools is selected.
•
The Virtual Volumes tab, which appears when a pool in Pools is selected.
Working with THP V-VOLs 113