Coda File System

Re: backup

From: Henry Pierce <>
Date: Fri, 3 Apr 1998 17:07:20 -0500 (EST)
I think the problem you are having is that you are not getting
the databases from your Coda Server.  However, if you are 
truely not using replicated volumes, we recommend you do.  You
can create "singlely" replicated volumes which have a different
set of characteristics from non-replicated ones.  For example,
incremental backups cannot be done on non-replicated volumes only
full backups.  Also, you can take advantage of the copy-on-write feature of
replica whereas you cannot for non-replicated volumes.  Don't let the term
"replicated" fool you... while it is true that it may indicate a 
volume that has two or more copies on different physical machines, 
it also refers to the property of a Coda Volume.  

When you created your volumes, did you use "creatvol" or "createvol_rep"
to make them?  If you used the later, then you most likely have
singlely replicated volumes and should persue the setting up
of updatesrv, updateclnt, and authmon.

henry m. pierce

Henry M. Pierce
Research Programmer
Department of Computer Science
Carnegie Mellon University
5000 Forbes Avenue
Pittsbugh, PA

On Fri, 3 Apr 1998, the prophet wrote:

> Date: Fri, 3 Apr 1998 16:19:24 -0500 (EST)
> From: the prophet <>
> Reply-To: linux-coda_at_TELEMANN.CODA.CS.CMU.EDU
> To: linux-coda_at_TELEMANN.CODA.CS.CMU.EDU
> Subject: Re: backup
> Resent-Date: Fri, 3 Apr 1998 16:22:00 -0500
> Resent-From: linux-coda_at_TELEMANN.CODA.CS.CMU.EDU
> I wonder if the problems I'm having are a result of the fact that my
> volumes are not replicated, and as a result, I have no VRDB.  Do volumes
> have to be replicated in order for backup to work?
> -Eli Daniel
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Received on 1998-04-03 17:11:40