drbdconf

global {
        usage-count yes;
}
common {
        protocol C;
        disk {
                on-io-error detach;
                fencing resource-only;
        }

        net {
                cram-hmac-alg sha1;
                shared-secret "b7a0680c40bca2439dbe48343ddddcf4";
        }

        syncer {
                rate 30M;
                al-extents 3389;
        }

        handlers {
                fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
                after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";
                pri-on-incon-degr "echo b > /proc/sysrq-trigger";
        }
}

resource nas {
  meta-disk internal;
  device /dev/drbd1;

  syncer {
    verify-alg sha1;
    rate 100M;
  }

  net {
    after-sb-0pri discard-zero-changes;
    after-sb-1pri discard-secondary;
    after-sb-2pri disconnect;
  }

  on NAS-1 {
    disk /dev/sdb1;
    address 192.168.152.201:7789;
  }

  on NAS-2 {
    disk /dev/sdb1;
    address 192.168.152.202:7789;
  }
}