Mapping Command Devices As Remote Command Devices; Troubleshooting External Storage Xp; Restrictions On Remote Command Devices - HP StorageWorks User Manual

• Serial number
• Vendor
• Device name
NOTE:
column of the Device list. For the device names reported to the host, see
• The following are restrictions for mapping command devices as remote command devices.
Table 10

Restrictions on remote command devices

Item
Emulation type
Number of LDEVs in an external LU
IO Suppression mode
Cache mode
Minimum capacity
Maximum capacity
• External Storage XP's Discovery operation cannot identify remote command devices.
• You cannot execute I/Os to remote command devices.
• You cannot set command devices to disabled on remote command devices.
• You cannot set command devices' security on remote command devices.
• Do not set command devices' security on the external disk array side for command devices mapped as
remote command devices.
• You cannot create LUSE volumes using remote command devices.
• You cannot use Volume Manager to create CVs in remote command devices.
• Cache LUN XP is not available on remote command devices.

Mapping command devices as remote command devices

To map command devices in external disk arrays as remote command devices, see
(Add LU)" on page 60.
NOTE: Command devices that can be mapped as remote command devices are displayed on External
Storage XP's panes as shown in
When you select Discovery in the Device tree on the LU Operation pane, the external disk array's WWNs
appear. When you select an external disk array's WWN in the Device tree, information such as
OPEN-V-CM appears in the Device column of the Device list for command devices that can be mapped.
Select a command device that can be mapped, and follow the procedure in
LU)" on page 60 to map it.

Troubleshooting External Storage XP

If you have a problem with the Command View XP computer or Command View XP or XP Remote Web
Console software, see the HP StorageWorks Command View XP user guide for XP Disk Arrays or the
HP StorageWorks XP Remote Web Console for XP12000/XP10000 for troubleshooting information.
Table 11 provides general troubleshooting instructions for External Storage XP operations.
The device name reported to the host is the same as the one displayed in the Device
Table 9.
Restriction
OPEN-V
1
Disable
Disable
96,000 blocks (about 47 MB)
2 TB
Table 9.
"Mapping external LUs
"Mapping external LUs (Add
External Storage XP user guide 95