[Pacemaker] Building an active/passive dhcp server

[Matthew Palmer]

On Fri, Mar 19, 2010 at 10:47:59PM +0100, Emmanuel Lesouef wrote:
> I'm trying to make a active/passive dhcp server.

[...]

> The problem is that when node1 come online again, there's a difference
> in the dhcp lease file.
> 
> I think that using rsync to synchronize the lease file is not the best
> solution and that a clustered file system is the best solution.

Yes, rsyncing your leases file around isn't going to be a win.  However, a
clustered filesystem is a really bad idea, as the complexity is far more
than you need.  Instead, a small DRBD (http://www.drbd.org/) volume with a
regular filesystem such as ext3 will work Just Fine And Dandy.

- Matt