On Tue, 15 Feb 2005, Jure Pe_ar wrote: > On Tue, 15 Feb 2005 12:18:57 -0500 > Lee <[EMAIL PROTECTED]> wrote: > > > What are the implication of raid 10 vs. raid 5 with cyrus? Are they > > significant? Does EXT3 play into the discussion?
1. Use 2.6.10+ ext3, with all hashing enabled 2. Use an external journal in a fast device (not the RAID5 array) > Cyrus 2.3 CVS code enables you to split indexes and cyrus db files into > their own partition. That's where most of the i/o activity is concentrated, > so you only need to optimize that partition. The mail spool that remains can > be raid5. This is probably the best way to do it, especially if you have some non-volatile solid-state disks around as it was suggested in this list sometime ago... > Yes, ext3 does have its problems, depending on how many users and how big > mailboxes you have. I'd recommend reiserfs. I've heard bad things about reiserfs' capabilities to withstand corruption *and* to be repaired later. Something that I'd take into account when choosing the FS for the big spools. But maybe reiserfs has non-joke repair utilities these days... -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
