HP StorageWorks XP Remote Web Console Software - Manual (Page 34)

Table 15 S-VOL Requirements
Requirement Item
V-VOL
You cannot specify the following volumes as XP Snapshot S-VOLs.
• Volumes used as S-VOLs of XP Snapshot pairs
•
Volumes used by a pair or migration plan of another program product
NOTE: A LUSE S-VOL must be paired with a P-VOL of the same size and the same
structure.
Volume type
OPEN-V Emulation type
16,384 Maximum number
Required Path definition
Table 16 Pool-VOL Requirements
Requirement Item
Logical volume (LDEV)
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
Volume type
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 for pool-VOLs registered in the same pool so that performance is not
decreased. RAID level
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.
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.
Drive type
34 Preparing for XP Snapshot Operations