HP StorageWorks LUN Configuration and Security Manager XP user guide for the XP12000/XP10000/SVS200 (T1714-96008, June 2006)

LUN Configuration and Security Manager XP user guide for the XP12000/XP10000/SVS200 129
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.
CAUTION: Note the following points when you perform a Volume Manager operation using a
path-defined LDEV:
• If a path is defined from a Windows 2000, Windows Server 2003, or AIX 5.2 host to an LDEV, you
can use the LDEV for Volume Manager operations using a path-defined LDEV. However, if a path is
defined from a host running another operating system to an LDEV, you cannot use the LDEV for Volume
Manager operations using a path-defined LDEV.
• If a path is defined from a Windows 2000 or Windows Server 2003 host to an LDEV and you want to
perform a Volume Manager operation that handles this path-defined LDEV, ensure that the Windows