[OpenAFS] migrating /usr/afs/db/kaserver.*

[Robin Yamaguchi]

Hi Russ et al,

Thanks for the input, and your advice is well taken.

I figured out my problem.  On my 2nd box, I changed the cell name without
understanding the effects.  I found this webpage:

http://www.rz.uni-hohenheim.de/netzwerkbetriebssysteme/afs36/debug/admin/cellname.html

thanks again Russ.

-Robin

--------------------------
Robin H. Yamaguchi
Physics Computing Services
UC Santa Barbara
--------------------------

On Thu, 10 Jul 2003, Russ Allbery wrote:

> Robin Yamaguchi <rhy@physics.ucsb.edu> writes:
>
> > I'm going through the process of a bare-metal restore on our AFS server
> > for testing purposes.  On a 2nd machine, running the same OS (redhat 9)
> > and same version on OpenAFS (1.2.9).  I got the AFS server running in a
> > new cell w/ no problem.
>
> > To restore my ka and pt entries, I copied over /usr/afs/db/kaserver.*
> > and /usr/afs/db/ptserver.* files from the 1st machine to the 2nd,
> > properly shutting down those services before touching those files on
> > both machines.
>
> I know this doesn't exactly help with the exercise that you're going
> through, but far and away the best way of replicating the database files
> to another server is to just install all the server software on a second
> machine with an empty database file, copy over the KeyFile (securely!),
> add it to CellServDB on the existing database machine, and kick the
> database server processes on both machines.
>
> They'll talk to each other, figure out that the second machine doesn't
> have a database, replicate the database via Ubik, and you'll be all set.
>
> The best way, IMO, to do AFS database backups is to have enough machines
> around that you never lose them all at once....  (Of course, if you get
> corruption that then replicates, this strategy doesn't help.)
>
> --
> Russ Allbery (rra@stanford.edu)             <http://www.eyrie.org/~eagle/>
>
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