### global_common.conf ##################

global {
	usage-count no;
	# minor-count dialog-refresh disable-ip-verification
}

common {
	syncer {
		rate 100M;
		c-plan-ahead 20;
		c-fill-target 50k;
		c-min-rate 10M;
		al-extents 3833;
		use-rle;
	}

	handlers {
		# These are EXAMPLE handlers only.
		# They may have severe implications,
		# like hard resetting the node under certain circumstances.
		# Be careful when chosing your poison.

		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";
		out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";

		## avoid split-brain in pacemaker cluster
		fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
		split-brain "/usr/lib/drbd/notify-split-brain.sh root";
		after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";

		# before-resync-target "/usr/lib/drbd/snapshot-resync-target-lvm.sh -p 15 -- -c 16k";
		# after-resync-target /usr/lib/drbd/unsnapshot-resync-target-lvm.sh;
	}

	startup {
		# wfc-timeout degr-wfc-timeout outdated-wfc-timeout wait-after-sb
	}

	options {
		# cpu-mask on-no-data-accessible
	}

	disk {
		# size max-bio-bvecs on-io-error fencing disk-barrier disk-flushes
		# disk-drain md-flushes resync-rate resync-after al-extents
                # c-plan-ahead c-delay-target c-fill-target c-max-rate
                # c-min-rate disk-timeout

		## avoid split-brain in pacemaker cluster
		fencing resource-only;
	}

	net {
		# protocol timeout max-epoch-size max-buffers unplug-watermark
		# connect-int ping-int sndbuf-size rcvbuf-size ko-count
		# allow-two-primaries cram-hmac-alg shared-secret after-sb-0pri
		# after-sb-1pri after-sb-2pri always-asbp rr-conflict
		# ping-timeout data-integrity-alg tcp-cork on-congestion
		# congestion-fill congestion-extents csums-alg verify-alg
		# use-rle

		## DRBD recovery policy
		after-sb-0pri discard-least-changes; 
		after-sb-1pri call-pri-lost-after-sb; 
		after-sb-2pri call-pri-lost-after-sb; 
	}
}


####  r0.res file content #############
resource r0 {
        protocol C;
        startup {
                wfc-timeout  0;     # non-zero wfc-timeout can be dangerous (http://forum.proxmox.com/threads/3465-Is-it-safe-to-use-wfc-timeout-in-DRBD-configuration)
                degr-wfc-timeout 60;
                become-primary-on sher;
        }
        net {
                shared-secret "S3cr3t";
				sndbuf-size 0;
				max-buffers 8000;
				max-epoch-size 8000;
        }
        on sher {
                device /dev/drbd0;
                disk /dev/md0p1;
                address 192.168.0.21:7788;
                meta-disk internal;
        }
        on lock {
                device /dev/drbd0;
                disk /dev/md0p1;
                address 192.168.0.22:7788;
                meta-disk internal;
        }
	disk {
		# no-disk-barrier and no-disk-flushes should be applied only to systems with non-volatile (battery backed) controller caches.
		# Follow links for more information:
		# http://www.drbd.org/users-guide-8.3/s-throughput-tuning.html#s-tune-disable-barriers
		# http://www.drbd.org/users-guide/s-throughput-tuning.html#s-tune-disable-barriers
		# no-disk-barrier;
		# no-disk-flushes;
		no-md-flushes;
	}
}