On Tue, Nov 14, 2017 at 05:50:08PM +0100, Marco Marino wrote: > Hi, > I'm trying to understand if it is possible to deploy a 2 node solution with > drbd9/drbdmanage compatible with openstack-cinder-volume. Should I use 2 or > 3 nodes with drbdmanage? It seems that, in a 2 node configuration, if one > node goes down, drbdmanage becomes unstable ( please see > https://lists.gt.net/drbd/users/28672 )
In a two node cluster both have to be up, otherwise really have to force drbdmanage to do operations (that is intentional). In a 3 node setup one can fail, the others still have quorum. That is something you have to decide. A common setup for openstack is 3 storage nodes and $N hypervisors that act as drbdmange satellites/DRBD clients (without local storage, they read/write data via the network). HTH, rck _______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
