RE: [cobalt-users] Arkeia Backup and Tape Drives

[Rik Thomas <rikt@xxxxxxxxxxxx>]

On Tue, 9 Jan 2001, Chip Thero wrote:

> I have not checked the archives , but is there a way to do fail over?  In
> other words, is there software for the cobalt to get a backup raq3 to mirror
> a primary raq3 and if that primary fails, the backup takes over?
>
> Chip Thero
> Desk til dawn Productions
>
> -----Original Message-----
> From: cobalt-users-admin@xxxxxxxxxxxxxxx
> [mailto:cobalt-users-admin@xxxxxxxxxxxxxxx]On Behalf Of Kevin D
> Sent: Tuesday, January 09, 2001 1:31 PM
> To: cobalt-users@xxxxxxxxxxxxxxx
> Subject: Re: [cobalt-users] Arkeia Backup and Tape Drives
>
>
> You don't need arkeia for that! You can set up an FTP backup to backup one
> raq3 to another raq3.
>
> Or you could set up NFS and do it that way.
> Or you could set up Samba and do it that way.
>
> You get the idea.
>
> Kevin
>

The cheapest way to do it is to run a mirror script or rsync and copy the
files over to another server that way.  Then setup round robin dns for the
domain.  Have your DNS records setup this way.


www	IN	A	10.0.0.1
www	IN	A	10.0.0.2


This would be a two server scenario, your DNS would alternate which IP
address a query would go to.  If one server were to go down, then you can
delete the A record for the down server and move on.  If you don't the
worst thing that would happen is that approximately 50% of your requests
would go to the down IP address.  But if you control your own IP addresses
and the servers are on the same network/subnet, you could just move that
other IP address over.

Disclaimer:  I have not tried to do this with Cobalts DNS.  I run my own
DNS servers and not Cobalt's.


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