On 11/3/10 3:25 PM, Ibrahim Harrani wrote: > Hi, > > Currently, my domains and users are distributed to different mailhosts > in my qmail ldap cluster. > In this setup, If I one of the mailhost is down, the users can't > access to mailbox on this server. > To setup a redundant system, I would like to keep mailbox on GFS file > system with multiple backends. > All backends will share the same GFS partition. There will be one > mailhost entry in openldap entries and > load balancer to distrube pop3/imap and smtp connections to backends. > If one of the backend is down, this will not effect > the users. > > But, I have some doubts about locks and I/O issues. Can you please > share your experience about this kind of setup? > > Thanks > Hi,
I have one software load balancer (LVS-DR) with two nodes-MTA, and each node share a SAN partition. I set up a GFS cluster on both nodes. My load balancer distribute smtp(25,587), pop3s, imap and imaps connections to nodes. I have about 20000 Maildirs and so far not had any I/O issue. -- ...................................... Eduardo Costa Centro de Comunicações - Instituto Politécnico de Bragança raposo at ipb.pt http://www.ipb.pt/~raposo/ ......................................
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