[Samba] Active/Passive Samba Cluster for Shared NFS Backend

[Sketch]

On Thu, 18 Sep 2014, Andrew Martin wrote:

> Is it possible to do what I've described without needing to use CTDB
> and a clustering filesystem?

I haven't tried it, but I don't see why an NFS share wouldn't work as your 
"cluster filesystem" for CTDB.  I believe it just needs to be a shared 
volume that can be written to by all cluster members.

Of course, CTDB is not strictly required, it just has a little more smarts 
for detecting problems with the samba daemon beyond a complete node 
failure.  You can use another method to failover if you prefer.  If all of 
your clients are Windows on AD, you could even just use DFS to handle 
failover on the client side.