You customize the storage pool type while you set up a volume.
To change storage pool settings for an existing volume, you must destroy and re-create the volume.
When you create a storage pool from unallocated LUNs, you determine what kind of data will be stored in the pool. You can choose:
Metadata and journal
Metadata and user data
Metadata only
Journal only
User data only
Any (Metadata, journal and user data)
While adding storage pools to a volume, select the new pool, then click Edit to assign one for more LUNs to a pool.
Choose one of the data types from the Type pop-up menu.
Add LUNs to the pool, then click OK to finish.