Re: Linux filesystems was [Re: Debian cd supporting ext4.]
On Tue, Jul 27, 2010 at 01:39:18PM -0500, Stan Hoeppner wrote:
> Volkan YAZICI put forth on 7/27/2010 12:19 PM:
> > About a year ago, in a similar rush to yours, I ported two of our
> > PostgreSQL database servers to XFS. During testing period, I even
> > couldn't *recover* the / fs after the very first power failure test.
> What write operations were you performing at the time you pulled the plug?
> Unless you were writing the superblock it'd be almost impossible to hose the
> filesystem to the point it couldn't mount. Were you doing a resize operation
> when you pulled the plug? xfs_growfs? As far as recovery, it's automatic
> upon mounting the XFS filesystem. What do you mean, precisely, by "couldn't
> *recover* the / fs"?
Some anecdotal evidence in support of ext3's resilience to power loss:
I recently lost power while my system was running. When power was
restored, an fsck was automatically performed. During that fsck, I lost
power again! I thought for sure I'd be hosed, but after the power came
back and an fsck completed, everything seems to be working normally.