choosing a file system
Robert Banz
rob at nofocus.org
Tue Dec 30 11:58:37 EST 2008
On Dec 30, 2008, at 8:49 AM, LALOT Dominique wrote:
> Hello,
>
> We are using cyrus-imap for a long time. Our architecture is a SAN
> from EMC and thanks to our "DELL support" we are obliged to install
> redhat. The only option we have is to use ext3fs on rather old
> kernels. We have 4000 accounts for staff and 20000 for students
> The system is rather fast and reliable. BUT..
>
> Once, there was a bad shutdown corrupting ext3fs and we spent 6
> hours on an fsck.
> Next we discovered that our backup system was going slower and
> slower. We just pointed out that it was due to fragmentation, and
> guess what, there's no online defrag tool for ext3.
>
> I'm looking for other solutions:
> ext4fs (does somebody use such filesystem?), xfs
> zfs (but we should switch to solaris or freebsd and throw away our
> costly SAN)
> use a NetApp Appliance (are you using such a device?, NFS seems to
> be tricky with cyrus..)
Run Solaris, but keep a machine on the SAN with that old version of
RedHat that you can use to replicate any problems you have? ;)
-rob
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