Re: [cobalt-users] Looking for Near 100% Up Time for a Very Vocal Hosting Customer

[Alex Krohn <alex@xxxxxxxxxxxxxxxxxxxx>]

Hi,

> Currently have a customer that is very vocal and they are wanting to know
> what can be done to prevent any kind of outage for their email and web
> sites.

We've used fake (part of the linux high availabilty project) before and it
works quite well:

    http://www.vergenet.net/linux/fake/

If the main server is not responsive, the backup server steals it's ip address
and comes online almost instantly. 

Never tried it with raq's, but I don't see why it wouldn't work there as well.
The tricky part is keeping the data in sync, but depending on your needs, you
can use things such as rsync, mysql server replication, or nfs.

Cheers,

Alex