[DRBD-user] primary/primary with GFS on RH on vmware

[Jakl Stefan, ACA-IT-OP-COR]

Hello

I've got a small question about the split-brain.
If I have a primary/primary - setup (drdb.conf is below), and I run in to a split-brain condition, how can STONITH one node ?
Which parameters where needed ?


If one node is down, I have the RH-Cluster which has a working vm-ware fenicing. 
How does the drbd recognize that he has lost his primary/primary-config, and run some commands for STONITH ?


Thank you 
Kind regards
Stefan Jakl


###############
#
# please have a a look at the example configuration file in
# /usr/share/doc/drbd83/drbd.conf
#
global {
        usage-count no;
}

resource r0 {
        protocol C;

startup {
        degr-wfc-timeout 15;
        wfc-timeout 30;
        become-primary-on both;
        }

 syncer {
        rate 100M;
        }

disk {
        fencing resource-and-stonith;
     }


on server1 {
        device  /dev/drbd0;
        disk    /dev/sdc1;
        address 10.x.x.x:7788;
        meta-disk       internal;
                }

on server2 {
        device /dev/drbd0;
        disk    /dev/sdb1;
        address 10.x.x.x:7788;
        meta-disk       internal;
                }

net {
        allow-two-primaries;
        after-sb-0pri discard-younger-primary;
        after-sb-1pri discard-secondary;
        after-sb-2pri call-pri-lost-after-sb;
        timeout 90;
        connect-int 10;
        ping-int 10;
        max-buffers 2048;
        max-epoch-size 2048;
    }

}
######################