Date: Mon, 21 Jun 2004 14:51:03 -0400 From: Andy Harrison <aharrison@gmail.com> To: Bill Moran <wmoran@potentialtech.com> Cc: questions@freebsd.org Subject: Re: What's the best possible email failover solution Message-ID: <a22ff294040621115173bad2e0@mail.gmail.com> In-Reply-To: <20040621132006.2b1a296f.wmoran@potentialtech.com> References: <20040621132006.2b1a296f.wmoran@potentialtech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 21 Jun 2004 13:20:06 -0400, Bill Moran <wmoran@potentialtech.com> wrote: > > Hey, > > I know questions like this get asked a lot, but I'm going to be really specific. > > I know how to set up failover with a backup MX. That's not what I'm looking > for. We have a cyrus-imap server with lots of users connecting via IMAP, > while everything gets backed up, this only happens once a night. Thus, if the > server were to go up in smoke right before the backup occurred, we'd lose > something like 23 hours worth of emails. > > Does anyone have a solution to provide real-time mirroring of IMAP folders? > I don't mind manual intervention to get the thing running again, I just want > to ensure that if an email is received, it's on both machines and can't get > lost. Is there a way to get real-time replication of cyrus (I'm no cyrus > guru, another fellow set this up) > > I'm not tied to Cyrus either, if there's another solution, I'd be happy to > implement it. > > I have an idea ... by using Dovecot with PostgreSQL storing the actual mail > folders, with Slony installed to provide real-time replication of the Postgres > database ... I don't know if Dovecot is able to store the actual mail folders > in Postgres yet, though ... Anyone? Real time mirroring would be a looooong way to go for very little return. You'd be much better off with some sort of NAS in a raid config, even if it were home grown, to store the spools. Then you can have as many front-ends as you want, just auth with LDAP or something. -- Andy Harrison
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?a22ff294040621115173bad2e0>