Am 2005-03-16 10:01:39, schrieb Martijn Lievaart: > Running courier for a five user setup on an old P90 I cannot really > comment on multi thousend user setups, but I must second this based on > years of experince with different mail setups. On any serious IMAP > server, you need fast I/O subsystems. If you use NFS, take some time to > tune it properly.
My first courier-(mta,imap) was on a HP Vectra XA5 (P1 200MHZ with 192 MB of memory) but with a 3Ware 3w6507 and 3 x 40 GByte WD400. Around 180 $USER and realy fast. > Theoretically the FS choosen should make a difference as well, try it > out. On Linux, reiser was designed for the type of access that imap on > maildir has, lot's of relatively small files. Try it out to see if it > makes a difference. Note that tools for reiserfs do not completely > integrate with some distros, expect some trouble (The fsck takes > different flags than the normal flags, on RH/Fedora this means boottime > fscks go all haywire, YMMV but I advice not to check your rieser > partitions on boot). I am using ext3 since the first stable release of Debian WOODY and nerver had performanc problems or lost files. ReiserFS had gaved me only problemsuncluding the last versions in Debian... After a power lost, Reiser has zeroed 1000th of files and made the filesystem inaccessible, my postgresql wa destroyed and I had to rebuild it. I am using a courier Server with public shared mailinglist archives and have more then 5.300.000 Messages on it... parallel an apache. It is MY Debian home... Running on a "HP Vectra XA5" too with 3w6507 and 3x WD800... Need to configure my SQUID and the site is online back > M4 Greetings Michelle -- Linux-User #280138 with the Linux Counter, http://counter.li.org/ Michelle Konzack Apt. 917 ICQ #328449886 50, rue de Soultz MSM LinuxMichi 0033/3/88452356 67100 Strasbourg/France IRC #Debian (irc.icq.com)
signature.pgp
Description: Digital signature
