HP StorageWorks External Storage XP user guide (T1706-96006, June 2006)

External Storage XP user guide 121
8 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/SVS200 for troubleshooting
information.
For additional assistance, contact your HP account support representative.
Table 12 provides general troubleshooting instructions for External Storage XP operations.
Table 12 General External Storage XP troubleshooting
Error Corrective action
The Command View XP
management station or XP
Remote Web Console cannot
access the external LU.
Correct the error and retry the operation.
The reason for the error could be one of the following:
• The Fibre Channel (FC) switch is off or an error occurred in the switch.
• The FC cables are not properly connected.
• The configuration of the external array changed, and the external LU was
deleted.
• An error occurred with the external LU in the external array.
• The path in the external array changed.
• The port attribute of the local array is no longer external.
• The topology information is not set correctly.
The external LU cannot be
mapped as an internal LDEV
of the local array.
Correct the error and retry the operation.
The source of the error could be any of the following:
• The number of mapped external LUs exceeds the maximum number (15,360
LUs for XP12000 or 8,192 LUs for XP10000/SVS200) available for the local
array.
• There are not enough CU:LDEV numbers available for external LU mapping.
The path to the external LU is
blocked.
1. The errors listed in the first row of this table (Error: The Command View XP
management station or XP Remote Web Console cannot access the external
LU) could be the reason for this error. Check the reasons in the first row,
correct the error, and retry the operation. If the error persists, try step 2b.
2. Try the following procedures. If they do not work and the path is not restored,
contact your HP account support representative.
a. Verify that the cable between the local array and external array is
connected properly.
b. If the cable between the local array and external array is connected
properly, disconnect and reconnect it. After 30 seconds, check the path
status from Command View XP or XP Remote Web Console.
The status appearing in the
Ex-Dev. Status column is
Normal, but the status
appearing in the LDEV Status
is Unknown.
The LDEV’s status cannot be determined. This occurs when the LDEV does not
exist. The reason for the error could be:
• The LDEV was been created when the volume was mapped.
• The LDEV in the external LU was deleted by the Volume Manager function.
If
LDEV Status becomes Unknown by any reason other than above, contact you
HP account support representative.
The path status that requires
the action appears in the
Alternate Path list on the Path
Setting window (see ”Setting
alternate paths for external
LUs” on page 86).
The following rows describe path status values displayed in the Alternate Path list
and corrective actions for each status value. See ”Notes on connecting external
arrays” on page 127 for notes on connection settings and examples of recovery
procedures, and then take the corrective action.