On Sat, 3 Jan 2009, Rob Mueller wrote: >> But the new Solid-State-Disks seem very promising. They are claimed to >> give 30x the throughput of a 15k rpm disk. If IO improves by 30 times >> that should make all these optimizations unnecessary. >> As my boss used to tell me ... Good hardware always compensates for >> not-so-good software. > > What we've found is that the meta-data (eg mailbox.db, seen db's, quota > files, cyrus.* files) use WAY more IO than the email data, but only use > 1/20th the space. > > By separating the meta data onto RAID1 10k/15k RPM drives, and the email > data onto RAID5/6 7.2k RPM drives, you can get a good balance of > space/speed.
how do you move the cyrus* files onto other drives? David Lang ---- 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
