HP XP P9500 Storage - Manual (Page 188)

Identifying the Error Path
Check the obtained path information to find the path with the error. In the
Status column, the error path has the status Offline(E) or Online(E).
Narrowing Down the Hardware That Might Have Caused the Error
Check the DskName, iLU, ChaPort, and HBAPortWWN columns of the path with
the error to narrow down the hardware that may be the cause of the error.
To physically identify the hardware corresponding to DskName, iLU, and
ChaPort, use the information provided by the storage system management
program.
Identifying the Error Location and Correcting any Hardware Errors
Use the Windows and hardware management tools to identify the error
location, and then resolve the problem. If an error occurs in a path, HDLM will
output an error message to the host event log. Information about the path in
which the error has occurred is also output to the event log. For hardware
maintenance, contact your hardware vendor or maintenance company, if
there is a maintenance contract.
Placing the Path Online
After the path has recovered from the error, use the dlnkmgr command's
online operation to place the path back online. For details on the online
operation, see online (Places Paths Online) on page 6-11 . Execute the
following command:
dlnkmgr online
Executing this command places all the offline paths online.
If any path cannot be placed online due to an error, the KAPL01039-W
message will appear. To ignore such paths and to continue processing, type
y. Type n to cancel processing.
Check the statuses of the paths that cannot be placed online, and resolve the
problem.
Notes:
If path errors occur on all of the paths, and Windows recognizes some or
all of the paths, disk numbers might be changed over from the ones that
were being used before. If this happens, restarting the host will cause the
disk numbers to be returned to their original values. After the disk
numbers have changed back, use Symantec Backup Exec for Windows or
the Intelligent Disaster Recovery function of Veritas NetBackup.
What To Do for a Program Error
The following describes what to do to handle errors that occur in an HDLM
program. The following figure shows the troubleshooting procedure.
5-6
Troubleshooting
Hitachi Dynamic Link Manager User Guide for Windows ®