Bill Wichers wrote:
I've got a qmail/vpopmail/courier system at the moment that supports a fair load that continues to increase. At the moment everything runs on sevaral ext3 partions on top of LVM (to allow online expansion) on a RAID5 array using a hardware controller with write back cache.
I'm thinking that there are probably more efficient filesystems than ext3 for at least some of this, and have been thinking about using xfs (faster but still journaling), or maybe ext2 (very fast but no journaling) for at least the qmail queue. Does anyone have some recommendations for the filesystem to use on the partitions? Right now there are three partitions on the system, one for qmail's queue, one for the virus scanner's temp files, and one for the vpopmail maildirs. I have to be able to do online expansion for at least the maildirs due to IMAP and user requirements.
Any recommendations or insights would be appreciated!
I normally use reiserfs on the vpopmail home dir, and ext3 or ext2 on the qmail queue partition (due to old problems with reiserfs and qmail). I have recently installed a few systems with reiserfs on every partition and have seen no untoward problems.
I've heard good things about both jfs and xfs with vpopmail home and qmail queue, but I haven't had time to play with them or benchmark them under heavy load.