HP StorageWorks XP Remote Web Console Software - Manual (Page 33)

Table 16 S-VOL Requirements (continued)
Requirement Item
NOTE: A LUSE S-VOL must be paired with a P-VOL of the same size and the same
structure.
OPEN-V Emulation type
16,384 Maximum number
Required Path definition
Table 17 Pool-VOL Requirements
Requirement Item
Logical volume (LDEV) Volume type
NOTE: Separating normal volumes and pool-VOLs into different parity groups is
recommended for the best performance.
You cannot specify the following volumes as XP Snapshot pool-VOLs:
•
Volumes whose LDEV status is other than Normal and Normal (Quick Format)
You cannot specify volumes in blocked status or in copying process.
• LUSE volumes
•
Volumes used as P-VOLs or S-VOLs of XP Snapshot pairs
• Volumes already registered in pools of XP Snapshot or XP Thin Provisioning
•
Volumes used by a pair or migration plan of another program product
•
Volumes that are set with the Protect or Read Only attribute, or the S-VOL Disable
setting by Data Retention Utility
• Volumes that have Cache Residency Manager settings
•
System disks
• Command devices
•
Quorum disks
You cannot mix the following pool-VOLs in a pool:
• Internal volumes and external volumes
•
External cache enabled and external cache disabled volumes
OPEN-V Emulation type
All RAID levels are supported. You may register pool-VOLs whose RAID levels are
different in the same pool; however, HP recommends that you specify the same RAID level
RAID level for pool-VOLs registered in the same pool so that performance is not
decreased.
Volumes of any encryption status (Enable, Disable, and hyphen) can be used for
pool-VOL. Encryption status
FC, SATA, and SSD can be used as drive types. Drive type
When internal volumes are used, pool-VOLs with different drive types cannot be
intermixed in the same pool.
When external volumes are used, pool-VOLs with different drive types can be
intermixed in the same pool. For best performance, the use of volumes with different
drive types in a pool is not recommended.
8,192 Maximum number
However, the maximum number of pool-VOLs that can be registered in each pool
is 1024. That is, you can create up to 128 pools in one storage system.
System Requirements 33