Re: systems hangs every few days
On 6/18/2013 10:38 AM, Karl E. Jorgensen wrote:
> But... Since there are no clear suspects, paranoia dictates a run of
> fsck on the affected file systems. Just in case. At least it is a
> harmless check if you can afford the downtime while the file systems
> are unmounted.
If the PSU is headed South this may not be harmless. An fsck is going
to generate serious head movement while seeking the metadata inodes.
Head movement increases power draw, sometimes double that of the drive
at idle spin. If errors are found and corrections being written when
the system locks up, due to voltage drop caused by increased power draw
by the drive, then you may have a more corrupted filesystem, not less.
Find the cause of the lockup and fix it, before performing a destructive
repair of a filesystem. If a system is acting flaky the last thing
anyone should do is a destructive repair, as it just might be that.
--
Stan
Reply to: