HP XP Command View Advanced Edition Software - Manual (Page 186)

Performing Storage Subsystem Operations 186
• An LDEV used as a command device
• An LDEV specified as a copy volume (P-VOL, S-VOL, or SP-VOL)
To delete an LDEV:
1. Log in to Device Manager as a system administrator or storage administrator.
2. Make sure that the LDEV to be deleted is no longer in use, that the data has been backed up, and that all
access paths to the LDEV have been removed.
3. Select and expand the Subsystems object in the navigation frame, open the physical view for the desired
storage subsystem, and then open the LDEV Information panel for the array group in which you want to
delete an LDEV (see section
10-2-4 ):
• For XP1024/XP128, select Array Groups, select View on the desired frame, select the desired parity
group on the Frame Information (level 1) panel, and then select the desired array group on the Frame
Information (level 2) panel.
• For XP512/XP48, select Array Groups, select View on the desired frame, and then select the desired
array group on the Frame Information panel.
4. On the LDEV Information panel for the desired array group, select the desired LDEV, and then select the
DELETE LDEV button (refer to
Figure 10-18 ). If a path to the LDEV exists, the DELETE LDEV button is
not available.
5. When the confirmation panel displays (see Figure 10-38 ), select YES to delete the LDEV, or select NO to
cancel your request to delete the LDEV.
6. Device Manager displays a warning message. Check the warning message carefully. If it is acceptable to
delete the LDEV and lose the data, select the OK button. To cancel your request to delete the LDEV,
select CANCEL.
Figure 10-38 Deleting an LDEV – Confirmation
10-4-5 Setting a Command Device
The system administrator and storage administrator can set and cancel a command device on a StorageWorks
XP Disk Array storage subsystem. Guests, local system administrators, local storage administrators, and local
guests cannot set a command device.
A command device is an LU dedicated to communication between the RAID Manager software installed on the
host and the StorageWorks XP Disk Array storage subsystem. RAID Manager allows you to issue Business
Copy XP, Continuous Access XP, and LUN Security XP Extension commands from the host to the storage
subsystem through the command device.
If you are setting a command device on the StorageWorks XP1024/XP128 or XP512/XP48, you can also set
security for the command device. This LUN security setting allows you to limit the logical devices that can be
used as a command device to ones that are identified by the host and to prevent unwanted access from the
server host(s) using the device.
To specify a logical device as a command device, the logical device must satisfy the following conditions:
• For the StorageWorks XP1024/XP128 and StorageWorks XP512/XP48:
• A volume path must be assigned to the logical device (XP512/XP48 only).
• The logical device must not be reserved for Auto LUN XP (StorageWorks XP1024/XP128 or
XP512/XP48).
• The emulation type must be an OPEN-x type, such as OPEN-3 (not 3390-3C).
• There is no limitation on the number of command devices per storage subsystem.