dear all，
I have a drbd cluster with two nodes: C21 and C22. Now I want to add a
third node C23 into existing drbd cluster.
Here's how I did it：
1. drbdadm down r0
2. drbdadm apply-al r0
3. drbdadm dump-md r0 > r0-md
4. edit the r0-md:
4.1 increased the number "max-peers" from 1 to 2.
Paul,
I used classic heartbeat instead of pacemaker as I found it simpler to
configure however the one failover I have had wasn't very clean and
required some manual intervention. If your situation allows you can
also use pure manual failover (switch resources to primary, configure
The purpose you are talking about, sounds more as the purpose DRBD Proxy has
been developed for
www.linbit.com/en/products-and-services/drbd-proxy
Unless your off-site is the next building, which would allow you some
point-to-point wireless bridge or some fibre-connection, but that low
Le 25/09/2013 00:28, Paul O'Rorke a écrit :
Any suggested reading/resources would be appreciated, I'm a little
concerned that I should have started out with a stacked set up in the
first place. Is it possible to add this to an existing set up?
I'm almost sure you can create the stacked resource
Le 25/09/2013 08:10, roberto.fas...@gmail.com a écrit :
The purpose you are talking about, sounds more as the purpose DRBD Proxy has
been developed for
www.linbit.com/en/products-and-services/drbd-proxy
Yes and no, my understanding is that DRBD-proxy lets your production
cluster run faster
Yes you can add the stacked resource later, I have done this same thing several
times now by making the the device slightly larger first and using internal
metadata.
Also I have a DR site using protocol C and pull-ahead enabled without using
DRBD proxy. The main site and DR site are connected
Hi all,
I have a 2 node set up with both nodes in my server room using a GB
Ethernet direct connection between NICs for the DRBD resources using
Protocol C and single primary. It's working nicely.
We want now to add a third node using probably Protocol A at an off site
location to be used
