Pool-VOLs make up a DP pool.
Item | Requirements |
---|---|
Volume type | Logical volume (LDEV) Pool-VOLs cannot be used for any other purpose. For instance, you cannot specify these volumes as pool-VOLs:
|
RAID level for a Dynamic Provisioning pool |
You can use RAID 6 (6D+2P or 14D+2P). Pool-VOLs of RAID 6 and external volumes can coexist in the same pool. For pool-VOLs in the same pool: Pool-VOLs of different RAID levels can coexist in the same pool. Set one RAID level for pool-VOLs. If you register pool-VOLs with multiple RAID levels to the same pool, the I/O performance depends on the RAID levels of pool-VOLs to be registered. In that case, note the I/O performance of the drives. |
Data drive type for a Dynamic Provisioning pool | All drive types can coexist in the same pool with the following considerations.
|
Volume capacity | Internal volume: From 8 GB to 2.9 TB External volume: From 8 GB to 4 TB External volume with the data direct mapping attribute: From 8 GB to 256 TB |
LDEV format | The LDEV format operation can be performed on pool-VOLs only when all of
these conditions are satisfied:
|
Path definition | You cannot specify a volume with a path definition as a pool-VOL. |