Install sbd by entering the following commands in the terminal:
sudo apt update sudo apt install sbd
Description:
STONITH Block Device daemon
SBD provides a node fencing mechanism (Shoot the other node in the head, STONITH) for Pacemaker-based clusters through the exchange of messages via shared block storage such as for example a SAN, iSCSI, FCoE. It can be used as a STONITH mechanism in all configurations that have reliable shared storage.
Homepage: https://github.com/ClusterLabs/sbd/
Version: 1.3.1-2
Section: universe/admin