Examining The Messages; Obtain Path Information; Identifying The Error Path; Narrowing Down The Hardware That Might Have Caused The Error - Hitachi XP P9500 User Manual

If an error occurs in a boot disk environment on a path connected to the boot
disk, perform the procedure described in
Boot Disk Environment on page
The following shows the procedure for using the dlnkmgr command to handle
a path error.

Examining the Messages

Examine the message that is output to syslog in the host by using
applications or tools for monitoring messages. If the KAPL08022-E message
is output, view the message to check the path in which the error has
occurred. For details on the message, see
Messages on page

Obtain Path Information

Obtain path information to narrow down the hardware in which an error has
occurred.
Execute the following command:
# /opt/DynamicLinkManager/bin/dlnkmgr view -path -iem -hbaportwwn >
pathinfo.txt
pathinfo.txt is the redirection-output file name. Use a file name that
matches your environment.

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 Solaris and hardware management tools to identify the error location,
and then resolve the problem. 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
5-2.
Troubleshooting
Hitachi Dynamic Link Manager User Guide (for Solaris(R))
Actions to Take for a Path Error in a
5-6.
Checking Error Information in
5-5