Re: The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
Thanks Tim for the workout.
On Fri, Nov 24, 2006 at 02:51:11PM +0800, Tim Post wrote:
> I've been following this thread and thought I'd do a bit of
> experimenting to see which of the two best recover themselves.
>
> Once that happened, I paused both VM's, issued a sysrq to sync disks and
> destroyed them in memory. This simulated an out of control box where the
> admin was able to effect a shutdown where disks synced (not just push
> re-set).
>
> Booted them up again :
>
> Ext3 spent 30 minutes in a fsck, some data was lost
Was that data in lost+found or just gone?
>
> jfs spent 5 minutes, no data was lost
>
> Experiment #2
>
> Same experiment, only this time I didn't sync disks. I just destroyed
> the VMs in memory (same as pulling out the power plug), rebooted.
>
> ext3 fixed a couple of inodes and came back pretty quickly
> jfs drive wasn't able to be mounted.
What happens if you run jfs_fsck -f ?
Doug.
Reply to:
- References:
- Need to remove a ghost file, but can't because it doesn't exist
- From: hdv@jadev.org (J.A. de Vries)
- Re: Need to remove a ghost file, but can't because it doesn't exist
- From: Douglas Tutty <dtutty@porchlight.ca>
- Re: Need to remove a ghost file, but can't because it doesn't exist
- From: Johan Kullstam <kullstj-ml@comcast.net>
- Re: Need to remove a ghost file, but can't because it doesn't exist
- From: hendrik@topoi.pooq.com
- Re: Need to remove a ghost file, but can't because it doesn't exist
- From: Douglas Tutty <dtutty@porchlight.ca>
- The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
- From: hendrik@topoi.pooq.com
- Re: The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
- From: Douglas Tutty <dtutty@porchlight.ca>
- Re: The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
- From: hendrik@topoi.pooq.com
- Re: The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
- From: Douglas Tutty <dtutty@porchlight.ca>
- Re: The danger of dishonest disk drives (WAS:Re: Need to remove a ghost file, but can't because it doesn't exist)
- From: Tim Post <tim.post@netkinetics.net>