Hi we had some problems with cyrus-imap on top of gpfs a year ago concerning mmap files in a simple failover environment. (see the gpfs-mailinglist) But with recent versions it works. Greetings Hansjoerg > >Right now I'm setting up a similar solution to your... trying >to support up to 200.000 users on a 5 node cluster, using IBM GPFS. > >If sendmail is using procmail to do final mailbox-delivery, I >think the configuration change should be primarily putting a '/' >at the end of the path, as that should instruct procmail to >do maildir-style delivery. At least that's how I've been doing >it in my ~/.procmailrc. Ref. 'man procmailrc'. > > > >>i have 3000+ users and something like 70GB of >>emails and I'll have to test it very well before doing in the >>production server .... >> >> > >Sure.. There are a few mbox2maildir converters.. You should probably >try a few of them and verify that they all give the same result. > >Another thing to check is that your cluster-fs handles your load >well. My main consern would be how well GFS performs on >maildir-style folders, as most cluster-fs's I've seen are optimized >for large file streaming I/O. If possible, try to keep a lot of >file-metadata in cache so that you don't have to go to disk every >time someone check their maildir for new messages. > > > -jf > >-- > >Linux-cluster@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/linux-cluster > > -- _________________________________________________________________ Dr. Hansjoerg Maurer | LAN- & System-Manager | Deutsches Zentrum | DLR Oberpfaffenhofen f. Luft- und Raumfahrt e.V. | Institut f. Robotik | Postfach 1116 | Muenchner Strasse 20 82230 Wessling | 82234 Wessling Germany | | Tel: 08153/28-2431 | E-mail: Hansjoerg.Maurer@xxxxxx Fax: 08153/28-1134 | WWW: http://www.robotic.dlr.de/ __________________________________________________________________ There are 10 types of people in this world, those who understand binary and those who don't. -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
