HP StorageWorks XP10000 Disk Array - Manual (Page 141)

• The maximum capacity of a LUSE volume is 60 TB.
NOTE:
When a host accesses a LUSE volume, the host can only access less than 2 TB of the LUSE volume's
address area.
• Combining command devices and Just In Time volumes into a LUSE volume is not supported.
• The access attribute must be set to Read/Write.
• Combining internal LUs, external LUs, and virtual volumes (V-VOLs) is not supported.
• During online, the host mode must not be 0x0C [Windows].
• The I/O suppression mode and cache mode settings of LDEVs combined into a LUSE volume
must be the same.
• All LDEVs combined into a LUSE volume must be of the same drive type (either SATA drive or
non-SATA drive).
• VMAs are not set to LDEVs.
NOTE:
For more information about volume management areas (VMAs), see the HP StorageWorks LUN
Security XP Extension user guide .
• LDEVs are not pool volumes (pool-VOLs).
• LDEVs are not journal volumes.
The following are the specifications and restrictions on LDEVs released from a LUSE volume:
• The LUSE volume must not have a defined path.
• The access attribute must be set to Read/Write.
Volume Manager operations using a path-defined LDEV
When you create a LUSE volume, the top LUSE volume can be either an LDEV or LUSE volume that has
one or more paths defined to it. Only the top volume in the LUSE volume to be created can have any
paths. Other volumes in the LUSE volume to be created must not have any paths.
NOTE:
You can perform a Volume Manager operation using a path-defined LDEV regardless of how many
paths are defined to the LDEV.
NOTE:
You cannot combine a path-defined LDEV or LUSE volume with another path-defined LDEV or LUSE
volume.
NOTE:
When you start the Volume Manager operation to combine a path-defined LDEV or LUSE volume
with another path-defined LDEV or LUSE volume, a confirmation pane appears. Click OK if you want
to continue or Cancel if you do not.
HP StorageWorks LUN Configuration and Security Manager XP user guide for the
XP12000/XP10000/SVS200
141