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 ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
