[OpenAFS] Overview? Linux filesystem choices

chas williams - CONTRACTOR chas@cmf.nrl.navy.mil
Thu, 30 Sep 2010 11:28:41 -0400

On Thu, 30 Sep 2010 09:01:49 +0200
Lars Schimmer <l.schimmer@cgv.tugraz.at> wrote:

> Just want to ask - XFS repair or XFS check. Last time I tried it on
> linux I got a out of memory error (with 24GB memory available).
> AFAIK it does need a really large memory to check big partitions with
> lots of files in it.
> Not that we need it much, but in case of error it is important.
> So far I got best recovery on broken partitions with ext3 fs, not with
> reiser neither XFS.

rarely, we need to run xfs_repair to fix the filesystem.  i believe i
can count on one hand the number of problems that were fixed the last
decade by xfs_repair.  i dont think any of the problems were related
to xfs bugs but hardware failures. currently the filesystems are 44T in
size. the machine running repair had either 4G or 8G.  never ran into
the out of memory problem but then again i dont run xfs_check just
xfs_repair (or xfs_repair -n if i am just checking consistency).