[OpenAFS] Overview? Linux filesystem choices

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

Hash: SHA1

On 2010-09-29 21:12, chas williams - CONTRACTOR wrote:
> On Wed, 29 Sep 2010 12:35:23 -0400
> Steve Simmons <scs@umich.edu> wrote:
>> Yep, we're pretty much a 100% ext3 shop. We keep a close eye on other
>> things, and zfs has been looking more and more interesting. But given
>> the uncertain state of its future (see elsewhere in this thread) our
>> caution level has gone up quite a bit. For the really long term I
>> also keep an eye on btrfs, but some of it's features aren't as big a
>> win for AFS as they are for 'regular' users. Ext4 looks interesting
>> just for the fsck speed improvements (just freaking amazing). Extents
>> may also be useful, but I strongly suspect other issues bottleneck
>> AFS performance before the filesystem speed does. Then again, better
>> speed never hurts.
> we use solaris ufs on our current fileservers, but xfs practically
> everywhere else.  this is mostly due to our irix heritage but xfs has
> some benefits that ext3 does not have (like extents).  xfs is certainly
> quite a bit more mature than ext3 in my opinion.  ext4 is an attempt to
> get some of these xfs features into ext3.
> as far as bugs with xfs -- not too many.  we have done some really bad
> things to the xfs filesystems as well (like power failures several
> times in one week).

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.

Lars Schimmer
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