On Sat, Jun 23, 2012 at 06:36:24PM -0700, Greg Byshenk wrote: > On Sat, Jun 23, 2012 at 06:23:58PM +1000, Sean wrote: > > On 23/06/2012, at 7:47 AM, Leonardo M. Ram? wrote: > > > > Hi, since a few of days ago, I noticed my home server turns very > > > slow more than once a day, so every time I run "top" to see what's > > > processes are running, I can see fsck_ufs at the very top, and the > > > hard drive working like mad. > > > > > > I've checked my crontab and there's nothing related to fsck_ufs, > > > where can I start searching for the cause of the problem?, I > > > thought this process should run only at boot or shutdown, but this > > > time it is running -apparently- without a cause. > > > Background fsck. Your server crashed, rebooted, started up and fsck > > is running in the background while everything else continues. > > > > [...] > > > > The more important thing is to find out why it crashed - if there > > was a power outage, hardware or software issue. > > Another thing to do is look in the logs to see if background fsck > is failing for some reason. I've seen it happen in some cases that > background fsck fails and asks for a manual run, in which case the > filesystem remains dirty, and further reboots will continue to fail > until a manual fsck is run. >
At one point it was proven that background fsck was not benefitial. I am not sure what ever came out of that but it was advised to turn it off. I usually go with these to aid in something useful for things I do not really care about. You might consider to/not use fsck_y_enable but they help. fsck_y_enable="YES" background_fsck="NO" -- - (2^(N-1))
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