On Thu, 31 Aug 2000, Dave Sill wrote:
>
> It's also possible to cluster POP and IMAP servers, either with
> partitioned or shared responsibilities. E.g., you could have two POP
> servers: one for users whose names start with the letters A-M and
> another for those starting with N-Z. That spreads the load, but
> doesn't provide redundancy: if a server is down, some users are unable
> to access their mail. Alternatively, you can have multiple POP servers
> accessing a shared high-availability mail store like a
> network-attached RAID. The RAID is still a single-point-of-failure,
> but it's designed to minimize downtime. qmail's maildir format is
> especially well suited to storage on a network-attached RAID since it
> avoids messy locking problems.
In the case of shared storage, what is done to protect the queue? From
what I've read this far, losing the qmail queue means losing mail.
What are some of the ways to protect against this?
My first thought is mirrored drives on the incoming machines. That makes
the machines a little more pricey, but you get what you pay for.
Thanks,
Bill Carlson
------------
Systems Programmer [EMAIL PROTECTED] | Opinions are mine,
Virtual Hospital http://www.vh.org/ | not my employer's.
University of Iowa Hospitals and Clinics |
