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

Examining the messages

Examine the message that is output to syslog in the management-target 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
occurs. For details on each item displayed in the message, see
information in messages on page

Obtain path information

Obtain path information to narrow down the hardware in which an error has
occurred.
Execute the following command:
# /usr/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 AIX and hardware management tools to identify the error location,
and then take appropriate, corrective action. 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
following command:
# /usr/DynamicLinkManager/bin/dlnkmgr online
Executing this command places all the offline paths online.
online (Places Paths Online) on page
Troubleshooting
Hitachi Dynamic Link Manager User Guide (for AIX(R))
5-2.
6-11. Execute the
Checking error
5-5