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Old 11-11-2003, 01:04 PM   #1
Pete Dogg
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disk thrashing at 4am


i have a box with redhat 9 and almost ever night at 4am the hard drive starts thrashing. and nothing is running.
why would it do this? it's very annoying and wakes me up.
 
Old 11-11-2003, 02:37 PM   #2
unSpawn
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Check your system and users crontabs and at jobs.
If that doesn't show anything, try runnin top, atop or alike around thrashtime.
 
Old 11-11-2003, 03:24 PM   #3
wuck
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[offtopic]
thrashtime:

Time when the User's computer starts doing useless things that hog the system's harddisk when the User is in advanced state of sleeping.
[/offtopic]

 
Old 11-11-2003, 05:09 PM   #4
HappyTux
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Re: disk thrashing at 4am

Quote:
Originally posted by Pete Dogg
i have a box with redhat 9 and almost ever night at 4am the hard drive starts thrashing. and nothing is running.
why would it do this? it's very annoying and wakes me up.
That's your system running a cron daily updating your locate databse among other things Redhat and most other distro's have it setup by default and it's a good thing to be happening.
 
Old 11-11-2003, 05:11 PM   #5
Pete Dogg
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ok. how to I access that system cron and have it run at a more appropriate time?

i su to root and typed crontab -e but found no entries.
 
Old 11-11-2003, 07:37 PM   #6
HappyTux
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Quote:
Originally posted by Pete Dogg
ok. how to I access that system cron and have it run at a more appropriate time?

i su to root and typed crontab -e but found no entries.
You could always edit the crontab directly on my system it is /etc/crontab.
 
Old 11-11-2003, 08:39 PM   #7
Pete Dogg
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thanks HappyTux. that should do it. it was set to run the daily crons like logrotate at 4am. I've changed them to 8am.
 
Old 11-13-2003, 05:43 PM   #8
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/etc/crontab and root's "crontab -e" are separate!
 
  


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