Re: [Drbd-dev] cluster initialization with drbdmanage

[Roland Kammerer <roland.kammerer@linbit.com>]

On Wed, May 20, 2015 at 02:09:03PM +0200, Dietmar Maurer wrote:
> > > 1.) Where is the command line to join the node (mentioned in the README
> > > above)?
> > 
> > If the node where you execute "add-node" is able to ssh to the new node,
> > everything is fine and the join is executed for you. 
> 
> The README tell to execute new-node always on 
> "a node of the existing drbdmanage cluster"
> So for example, I should run 'add-node' always on the first node?
> Is that correct?

On any node that is already in the cluster... I always use the first
node.

> 
> > If not, the join
> > command gets printed and you have to manually execute the command on the
> > new node.
> > 
> > If you want to know which command that would be, you can use:
> > drbdmanage howto-join <nodename>
> > 
> > > 2.) Does this really destroy all existing resources? If so, how can I add 
> > > nodes to a cluster which already have existing resources?
> > 
> > Resouces managed by drbdmanage 
> 
> yes
> 

In that case it is exactly as drbdmanage told you:

CAUTION! Note that:
* Any previous drbdmanage cluster information may be removed
* Any remaining resources managed by a previous drbdmanage installation
that still exist on this system will no longer be managed by drbdmanage

The control volume gets overwritten, the old information is lost.

Regards, rck

P.S.:
1) Don't TO/CC me, I'm on the list.
2) Use the drbd-user list for that kind of questions.