Coda File System

Re: moving a dying server

From: Jan Harkes <jaharkes_at_cs.cmu.edu>
Date: Wed, 15 Jun 2005 16:43:46 -0400
On Wed, Jun 15, 2005 at 06:07:57PM +0200, Ivan Popov wrote:
> If your server can stay up a little bit more,
> the best migration option available today is to expand the replica
> lists for the volumes, create replicas on another server and populate them
> via server-server resolution, according to
> 
>   http://coda.wikidev.net/Dynamically_add_replicated_server
> 
> Then you can shut down your old server and replace it with another new one,
> repeating the procedure - or reduce the replica counts on the volumes
> (has anybody tried that?).

Don't even try that right now, it is not well tested, especially because
singly replicated volumes are created without a resolution log, while
replicated volumes need one. and you'd end up with no volume replica in
the first 'slot' of the version vector and I don't know if any code
depends on it being there.

Jan
Received on 2005-06-15 16:45:31