We have a NW of more than 45 AIX machines.
We have regular problems with /var File system in one or the other nodes.
It becomes full regularly.
The reasons noticed are

1. The directories /var/spool/mqueue and /var/preserve
sometimes occuppy hundreds of junkfiles.
We delete them.
Is it possible to disable the generation of junk files?

2. The file /var/adm/ras/errlog becomes large
We use errclear command to clear it.
But, even if we use errclear 0, the size of /var/adm/ras/errlog does not change
We can not delete it, as it is needed by the errpt command
What can I do?

3. The file /var/adm/wtmp grows verylarge. Even 550 MB.
How to control it. Can we remove it?

Can anybody help us

lookout for

logrotate and syslog

man logrotate

will help u more

regards

Also check your email. It sounds like your system is trying to send email and failing, which suggests sendmail isn't correctly configured with a valid MTA.

Thanks.

But Pl give the full PATHs of logrotate and syslog

It seems they are not available in our systems.

what do u get for

man logrotate

and

man syslog

also did u look at google for that???

regards

This can be solve your problem :
1. du -k . | sort -n
for sort the largest file
2. ls -lrt
just list it for now
3. > wtmp
reduce this file to 0
4. ls -l wtmp
check it again for sure
Maybe your problem is solve
5. Now run this command to check /var file system
df -k or df -h

/var/adm/wtmp : Contains connect accounting information.

yes the above can help u solve ur problem temporarily but the important thing will be to have a look at your policy
what kind of logs do u need to archive
so with logroate u can archive them on a regular basis and put those different archives in a different directory and move to another location

regards

man logrotae resulted
Manual entry for logrotate not found or not installed
Also I searched by
find / -fstype nfs -prune -o -name logrotae -print
It resulted nothing

for syslog also, the same result

Look at the /etc/syslog.conf file (name from memory - might be slightly different). It has quite clear instructions on how to rotate logfiles.

Yes, you can remove wtmp whenever you want. For example, to just keep a week's worth of entries, do something like the following from cron once a week :