[OpenAFS] drbd or nbd with openafs?

[Brent A Nelson]

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Dang, forgot the attachment...

On Mon, 23 Jun 2003, Brent A Nelson wrote:

> I don't have anything written up for it, and it hasn't really been tested 
> with active users, but I do believe I have a working OpenAFS server setup 
> with drbd (enbd would work fine, too).
> 
> There were a few tricks involved in setting it up.
> 
> 1) I made sure that only my failover IP was being registered with the
> volume database using the NetInfo file (just put in the failover IP
> address in /usr/afs/local/NetInfo).
> 
> 2) The big trick was forcing my takeover node to use the the failover IP
> address (which is an IP alias) as the source address on outgoing packets
> from that interface.  See the attached heartbeat script (goes in
> /etc/ha.d/resource.d).  The method I used is probably Linux-specific...
> 
> 3) Finally, I had to make sure the machines were using the same ID (I used
> a hexeditor on the /usr/afs/local/sysid file, but maybe someone else has a
> better method).
> 
> Both machines are database servers, with only the active file server 
> running "fs" at any given time.  They both have "fs" defined but not set 
> to run automatically and bos is set to never restart the services 
> (otherwise it would do the wrong thing).
> 
> I think that was it, but I may have missed something.  I might be able to 
> help if you get stuck.
> 
> Thanks,
> 
> Brent Nelson
> Director of Computing
> Dept. of Physics
> University of Florida
> 
> 

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