IBM RS/6000 SP, Руководство по определению проблем

Страница: 195 / 316

This soft copy for use by IBM employees only.
workstation for convenience. You can do this using the @hostname parameter
in the /etc/syslog.conf file.
6.3 Error Notification Facility
Following is a description of the actions to be taken by the notification method
EN_pend, located in the directory /spdata/sys1/err_methods. You can install this
method to invoke pre- and post-action scripts and mail a report of the logged
error. The script provides a suggested structure for notification methods and
can be reused with different pre- and post-action scripts.
EN_pend method flow
1. EN_pend looks in the directory it resides in for a file with the same name and
one with the
envs suffix. An EN_pend.envs script is installed in the same
directory. If found, it will set the environment variables EN_RUNDEFAULT
and EN_MAILLOC.
2. EN_pend.envs sets the EN_RUNDEFAULT environment variable. It also sets
the EN_MAILLOC variable to root at the Control Workstation (or, if this is
impossible, to root at the local node).
3. EN_pend checks for a pre-action script in the same directory and name with
a
.pre
suffix, and executes it if found.
4. EN_pend mails an expanded report of the error using the sequence of the
error passed by the notification facility to the EN_MAILLOC. Note that this
will only happen if the variables EN_RUNDEFAULT and EN_MAILLOC are set.
5. EN_pend checks for a post-action script in the same directory and name with
a
.post
suffix, and executes it if found.
Installing a notification object
To add the EN_pend method to all nodes in the current partition so they will send
a report whenever an error of type PEND (loss of availability of a device is
imminent) occurs, enter the following commands:
penotify -a -n
″
PEND_err
″
-P -t
″
PEND
″
-m /spdata/sys1/err_methods/ \
EN_pend $1
penotify -a -n
″
pend_err
″
-P -t
″
pend
″
-m /spdata/sys1/err_methods/ \
EN_pend $1
penotify -a -n
″
Pend_err
″
-P -t
″
Pend
″
-m /spdata/sys1/err_methods/ \
EN_pend $1
Three objects are added with variations on PEND because uppercase is not
always adhered to by all AIX LPPs and vendor functions. The
$1 argument
causes the Error Notification to pass the error sequence number to the notify
method.
Create different pre- and post-action scripts
The EN_pend and EN_pend.envs scripts can be used to invoke different pre- and
post-action scripts for different error events by creating links to them. EN_pend
looks for .envs, .pre and .post scripts in the directory it is called from and by the
same base name. In the following example, EN_pend is used for reporting
Chapter 6. E r r o r Logging
175