Am 31.10.2011 10:43, schrieb Arlin: > Hi Robert, > > Thanks for the reply. We are upgrading Dovecot to v2.0.15 and other > component's to the latest version. In that case, can we use san for storage > or are you recommending that drbd with ocfs2 is the best way to attain the > horizontal scalability for the mail storage?
Hi Arlin, there is no best way, you should choose whatever fits best to your needs an haves so it depends on many stuff ( i.e at last finance, network, manpower, knowledge) etc So all i can say iam just using a loadbalanced cluster setup with drbd ocfs2 maildir dovecot postfix mysql clamav spamassassin on ubuntu lucid lts with 3000 Mailboxes without any big Problems yet but i can imagine that a professional SAN might be better in performance but there is a lot other other questions left , i.e maildir must not be the best solution for mailbox format etc cluster setups with lots of mailboxes are complex in many ways, if you planning a real big mailservice you should ask more here on this list for existing other setups and choose i.e Timo and/or others for professional and paid advice and work > > Thanks, > Arlin > > -----Original Message----- > From: dovecot-boun...@dovecot.org [mailto:dovecot-boun...@dovecot.org] On > Behalf Of Robert Schetterer > Sent: 31 October 2011 14:26 > To: dovecot@dovecot.org > Subject: Re: [Dovecot] How can we horizontally scale Dovecot across multiple > servers? > > Am 31.10.2011 09:47, schrieb Arlin: >> Could anyone please respond to this query. Thank you! > > you may use loadbalancers i.e (keepalived etc) and/or > > http://wiki2.dovecot.org/FeatLoginProxy > http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy > > look the list for cluster setups etc > > reading your former post > you want to use many outdated prog versions dont do that a san for storage > might be a good choice some of the list use drbd with ocfs2 and other > cluster filesystems > >> >> >> >> From: Arlin [mailto:ar...@mvs.us] >> Sent: 28 October 2011 17:06 >> To: 'dovecot@dovecot.org' >> Subject: How can we horizontally scale Dovecot across multiple servers? >> >> >> >> Hi, >> >> >> >> How can we horizontally scale Dovecot across multiple servers? Do we >> require to install independent instances of Dovecot on each server? >> >> >> >> We are planning to use a NAS/SAN device using ZFS or EFS for email > storage. >> Each logical unit will be of 10TB and similarly as the no: of user >> increases we are planning to add multiple 10TB units. >> >> In this case how we can manage the email storage on multiple volumes >> from Dovecot. >> >> >> >> The configuration of our existing system is:- >> >> >> >> Dovecot 1.0.15 / Maildirs >> >> Postfix 2.5.5 >> >> Debian 5.0.9 (Lenny) >> >> MySQL 5.0.15 >> >> >> >> Please advise. >> >> >> >> Thanks in advance. >> >> >> >> Creative Regards, >> >> Arlin >> >> >> >> >> >> >> >> >> >> >> >> > > > -- > Best Regards > > MfG Robert Schetterer > > Germany/Munich/Bavaria > -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
