File 0001-Disable-quorum-in-default-configuration-bsc-1032142.patch of Package drbd-utils.18415
diff -Naur drbd-utils-9.0.0+git.98b6340c.orig/scripts/global_common.conf drbd-utils-9.0.0+git.98b6340c/scripts/global_common.conf
--- drbd-utils-9.0.0+git.98b6340c.orig/scripts/global_common.conf 2017-06-07 16:04:14.063680274 +0800
+++ drbd-utils-9.0.0+git.98b6340c/scripts/global_common.conf 2017-06-07 16:04:45.519644428 +0800
@@ -42,6 +42,7 @@
# RECOMMENDED for three or more storage nodes with DRBD 9:
# quorum majority;
+ quorum off;
# on-no-quorum suspend-io | io-error;
}