HP StorageWorks XP Remote Web Console Software - Manual (Page 62)

62 Volume Management for the XP128/XP1024
amount of free space are available in one VDEV. For other RAID levels, a maximum of 256 FVs and a
certain amount of space are available. Each VDEV in a parity group has the same configuration, and is
assigned the same FVs of the same size and RAID level.
VSC functions (Volume to Space, Install CV, Volume Initialize, and Make Volume) are performed on each
VDEV. VDEVs are also separated from each other by the boundary limitation. You cannot define a volume
across two or more VDEVs beyond the boundaries.
Figure 31 Parity group configuration for other than OPEN-V
As the result of VSC operations, a VDEV contains fixed volumes, custom volumes, and free spaces that are
delimited in logical cylinders. Sequential free spaces are combined into a single free space.
Figure 32 Virtual VSC volume configuration for other than OPEN-V
Before changing ordinary target ports or RCU target ports to initiator ports, make sure that no I/Os (such
as Extended Copy commands) are being performed from the host server to the affected ports. You can
change the port type of free ports only.
Volume to Space operation
The Volume to Space function converts one or more LDEVs (fixed or custom volumes) into free space, which
deletes the selected LDEVs from that volume.