Hewlett Packard Enterprise HPE XP7, User Manual, Page: 94 / 311

NOTE: Note the following when you add an external volume:
• External volumes with cache mode enabled and external volumes with cache mode disabled
cannot be contained in the same pool.
• External volumes with cache mode disabled and internal volumes cannot be contained in the same
pool.
• When setting the tier rank of an external volume to a value other than Middle , select the tier rank
from External LDEV Tier Rank , and then click Add .
NOTE:
• To specify conditions to display pool volumes, click Filter to open the menu, specify the filtering
conditions, and then click Apply .
• To select all pool-VOLs in the table, click Select All Pages . To cancel the selection, click Select All
Pages again.
• To specify the unit or the number of rows to be displayed, click Options .
5. Click OK .
The selected pool-VOL is shown in the Selected Pools table in the Create Pools window.
Pool creation and data drive type priority
Creating pools automatically sets the new pool-VOL with system area according to the priority of data
drive types.
The following table shows the priority of pool-VOLs with system area when creating pools.
Priority Data drive type
1 SAS7.2K
2 SAS10K
3 SAS15K
4 SSD or FMD
5 External volume
If more than one pool-VOL of the same data drive type exists in the storage system, the pool-VOL priority
is determined according to the storage system’s internal index information.
94 Pool creation and data drive type priority