Hitachi Dynamic Link Manager, User Manual

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5. Troubleshooting
389
5.2 Checking Error Information in Messages
When you want to configure the system so that HDLM messages are output to syslog,
specify
user
for the name of the system function defined in the syslogd settings file.
In the following example, the system function name is
user
, and messages at the
Information level or higher are output to the
/etc/syslog.conf
file:
user.info /tmp/syslog.user.log
You can check path errors by referring to the KAPL08 xxx messages that are output to
the syslog.
To obtain detailed information about a path failure, check the execution results of the
view
operation as indicated by the error message.
For details on the
view
operation, see 6.7 view (Displays Information) .
The following is an example of a message:
KAPL08022-E Error in path occurred. A path error occurred.
ErrorCode =
aa...aa
, PathID =
bb...bb
, PathName =
cc...cc
.
dd...dd
.
ee...ee
.
ff...ff
, DNum =
gg...gg
, HDevName =
hh...hh
The message elements are explained below:
ErrorCode
The error number generated when Linux detects a path error.
PathID
The ID assigned to a path. This ID is called the
AutoPATH_ID
. AutoPATH_IDs
are re-assigned every time the host is restarted. When you want to add a new LU
without restarting the host, AutoPATH_IDs are re-assigned to each path of the LU
when you execute the
dlmcfgmgr
utility.
This path ID is also the same as
PathID
displayed by the
dlnkmgr
command's
view
operation. For details on this
view
operation, see 6.7 view (Displays
Information) .
PathName
The path name indicates a path. When you modify the system configuration or
replace a piece of hardware, you should check the path names to identify the paths
that will be affected by the change.
A path name consists of the following four elements, separated by periods: