filesystems (was Data Recovery: professionals familiar with ext3)

[Paul Gear]

Dave Hall wrote:
> ...
> There are many issues with ReiserFS, which has only been exacerbated by
> the incarceration of its creator.  

Even before Hans Reiser was arrested, reiserfs v3 was still largely
unchanged for quite some time.

> ...
> I stopped using ReiserFS for any thing where data integrity was an
> issue, after once too often having to recover 100s of Gb from lost
> +found, a painstakingly slow process.  XFS on the other hand is rock
> solid, I have a couple of Tb sitting XFS filesystems just in my home
> office alone, and many more on client production system.  I have also
> seen XFS running on very very large filesystems.  It hasn't missed a
> beat.

I started using XFS on my backup drives about 2 years ago when i heard
that it was good for very large file systems.  I have not been
impressed.  Every time i've put XFS on an external USB or eSATA drive
(which is what i use for my backups), i have had a severe corruption
resulting in backup data loss, at least once every 3-6 months.  The most
recent was earlier this week.  XFS check and repair times are hideously
long on these drives.

I don't know why this is, but it could be something to do with the
Linux/Irix translation layer that XFS requires, or it could be something
to do with the very large number of hard links in my backup file system
(i use rsnapshot).  Regardless, i intend to get rid of my XFS file
systems as soon as my new 1 TB backup disks arrive :-).

Disclaimer: I have nothing against XFS in principle.  I just haven't had
good reliability from it.

Paul

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