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Old 09-10-2006, 12:46 PM   #1
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maintenance program

I use Suse 10.1, and every now and then at night the hard drive is very active for 30 minutes or more. eventhough I am not working on the computer.

is it some maintenance program that act like that?

I have look at the active processus, but I must admit I am kind of lost.
Old 09-10-2006, 12:53 PM   #2
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As user root, type
crontab -l | grep -v ^#
and post the output.
Old 09-10-2006, 01:09 PM   #3
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Chances are it's your slocate DB updating, most distro automatically have it done at 12am every night.
Old 09-10-2006, 03:30 PM   #4
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I have tried crontab -l | grep -v ^#
as root and as user
and the result is no crontab for either one
Old 09-10-2006, 03:46 PM   #5
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That's strange.
The next time, run `top` when your computer becomes busy again and watch what processes are running at that time.
Old 09-10-2006, 04:07 PM   #6
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I'm using OpenSuSE v10.1 and I've been running SuSE desktop distributions since v9.0. I suspect that, as cs-cam suggested, the system is running updatedb to update the database that is used by the locate command.

The *SuSE system has several cron files for the system. It's an irritating "feature". Here are the locations of the various crontab files for system maintenance jobs.
$ ls /etc/*cron*
/etc/cron.deny  /etc/crontab  /etc/sysstat.cron


logrotate            suse-do_mandb
suse-clean_catman      suse-tetex



You can see that /etc/cron.daily directory contains a file called This is the actual script that is run to update the file that is used by the locate utility. I think that the whole "feature" of these cron jobs is directed by the file /etc/crontab with the line:
-*/15 * * * *   root  test -x /usr/lib/cron/run-crons && /usr/lib/cron/run-crons >/dev/null 2>&1
Here you can see that this tells the normal system cron daemon to run a file called /usr/lib/cron/run-crons. This is a bash shell script. This is really as far as I care to investigate this idiotic trail of scripts that Novell SuSE has in place. Nevertheless it is clear that /etc/crontab runs /usr/lib/cron/run-crons which then decides what maintenance scripts to run.

Last edited by stress_junkie; 09-10-2006 at 04:09 PM.


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