You could also look at the qmail replication script which you can find in the wiki. It automates the domain sync. We have 2 identical servers running the script which runs every 15 minutes, so when if our primary fails, we change ip's on the backup and we are back up and running with at most 15 minutes difference. We've had to use this recovery once, which work flawlessly with about 3 minutes downtime. Basically none of our clients even noticed a problem.
-----Original Message----- From: Lucian Cristian [mailto:[EMAIL PROTECTED] Sent: 26 August 2008 08:38 To: [email protected] Subject: Re: [qmailtoaster] Two Toasters And A Backup Script? Duncan Sterling wrote: > Jake Vickers wrote: >> Duncan Sterling wrote: >>> Greetings All, >>> >>> Quick question: in the interest of redundancy and quick disaster >>> recovery, would it not make sense while running a production toaster >>> to: >>> >>> 1) Build an identically configured backup toaster >>> >>> 2) Run (Jakes?) backup script daily on the production toaster, >>> backing it up to the the backup toaster >>> >>> Thereby allowing near instant recovery in the event of HW/sotware >>> failure on the production box? >>> >> >> In the past, for ISPs, I've used some type of shared filesystem >> (usually NFS using 2 servers running DRBD and heartbeat) and then >> configured 2+ Qmail systems to act as front ends using the shared >> backend filesystem (most of the config files, and the mail store). >> Then you have 2 servers that you can DNS-round-robin, and it's >> trivial to plug more in as load increases. >> Although what you're suggesting WOULD work. The biggest things is >> always sharing the mysql DB, but there's several ways to do that >> depending on your conditions. > Thanks for your reply, Jake. > > I was thinking that perhaps the backup box's mysql could be slaved to > the primary's as one possible solution? > > --Duncan > > --------------------------------------------------------------------- > QmailToaster hosted by: VR Hosted <http://www.vr.org> > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > You don't have to run the backup script because it will be waste of time to archive the files, just rsync your domain dir and do a mysql dump/restore. Regards, Lucian --------------------------------------------------------------------- QmailToaster hosted by: VR Hosted <http://www.vr.org> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- QmailToaster hosted by: VR Hosted <http://www.vr.org> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
