/etc/drbd.d/admin.res 20130103

resource admin {

        protocol C;

	on hypatia.nevis.columbia.edu {
		device		/dev/drbd0;
		disk		/dev/md2;
		flexible-meta-disk	internal;
		address		192.168.100.7:7788;
	}
	on orestes.nevis.columbia.edu {
		device		/dev/drbd0;
		disk		/dev/md2;
		flexible-meta-disk	internal;
		address		192.168.100.6:7788;
	}

	startup {
	}

	net {
		allow-two-primaries	yes;
		# The following three commands tell DRBD how to react should
		# more about these options by reading the drbd.conf man page.
		# NOTE! It is not possible to safely recover from a split brain
		# where both nodes were primary. This care requires human
		# intervention, so 'disconnect' is the only safe policy.
		after-sb-0pri	   discard-zero-changes;
		after-sb-1pri	   discard-secondary;
		after-sb-2pri	   disconnect;

		# Allow DRBD to auto-tune this parameter.
		sndbuf-size 0;
	}

	disk {
		resync-rate	100M;
		c-max-rate	100M;
		al-extents      3389;

		# 01-Sep-2011 WGS: Let's use resource-level fencing in coordination with
    		# corosync <http://www.drbd.org/users-guide/s-pacemaker-fencing.html>
    		fencing resource-and-stonith;
	}

	handlers {
		pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
		pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
		local-io-error "/usr/lib/drbd/notify-io-error.sh; /usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger ; halt -f";

    		 # If the two disks fall out of sync due to a network interruption,
    		 # and the automatic recovery options given above don't solve the
    		 # problem, notify the systems administrator.
    		 split-brain "/usr/lib/drbd/notify-split-brain.sh sysadmin@nevis.columbia.edu";

		 # 01-Sep-2011 WGS: Let's use resource-level fencing in coordination with
		 # corosync <http://www.drbd.org/users-guide/s-pacemaker-fencing.html>
		 fence-peer "/home/bin/stonith_admin-fence-peer.sh";
		 #fence-peer "/home/bin/rhcs_fence";
		 #fence-peer "/home/bin/obliterate-peer.sh";
		 #fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
		 #after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";
	}
}