Re: Qmail Redundancy

[Lars Hansson <lars@xxxxxxxxxxx>]

EVDEVA@xxxxxxxxxxxxxxxxxxxx wrote:
> Hi All,
First of all, dont send html emails...

> Can I have a qmail server with /var/qmail as a link to a nfs share in a 
> common storage. I know that, maildirs can be on nfs.

Yes and no. /var/qmail can most likely be on nfs but /var/qmail/queue cant.

> If that is possible, i will install another qmail server (standby 
> server) with same IP & Hostname (This will be down always). When my live 
> server is down, is it possible to mount link /var/qmail & maildirs nfs 
> shares in the standby server and give the mail service though the 
> standby server?

There are easier and better ways of doing this. Mailboxes on nfs is a 
good idea but there's no need to have /var/qmail on nfs. Just sync 
configfiles using rdist, rsync or a similar tool.

> If this is not possible, i came across some article that in case of 
> qmail server is crashed and if we had taken the backup of /var/qmail, it 
> is possible to bring up the service by installing  a new OS and restore 
> /var/qmail alone.

Installing qmail on a fresh system doesnt take long, especialy not if 
you have your config backed up. I dont see how nfs helps in any way.
I'm also pretty sure that backing up the mail queue is fairly pointless 
but I might be wrong on that.

Oh, and try not to send attach those annoying and pointless disclaimers 
to email to technical lists.

---
Lars Hansson