[OpenAFS] any hack to get multiple read/write mirrors

Martin Schulz schulz@iwrmm.math.uni-karlsruhe.de
22 Oct 2001 10:37:30 +0200


Zachary Denison <zacharydenison@yahoo.com> writes:


> If something gets changed in 1 office, then it
> should have that change propagated to all offices so
> all people can see the change, which is why  original
> the file locking is important.  

So what advantages do you want to gain by replicating RW volumes? It
does not help you in case of network outage, since the above mentioned
immeadiate propagation of changes to all offices requires a working
network connection anyway, regardless wether this is between client
(office 1) and server (office 2) or between any two servers (office 1
and office 2).

Replicating RO volumes is another issue. That way, even during a
network outage, you can at least serve the data that was valid an hour
ago; otherwise, you could serve nothing at all.

With regards to server outage, I think that AFS is quite stable.  

Keep your RW volumes in the office they are most often changed
at. Relocation of volumes should not be much hassle. 

Yours,
-- 
Martin Schulz                             schulz@iwrmm.math.uni-karlsruhe.de
Uni Karlsruhe, Institut f. wissenschaftliches Rechnen u. math. Modellbildung
Engesser Str. 6, 76128 Karlsruhe