Install sanlock by entering the following commands in the terminal:
sudo apt update sudo apt install sanlock
Description:
Shared storage lock manager
Sanlock ensures that single disk cannot be used by more than one running VM at a time, across any host in a network. . This package contains the binaries and private shared libraries.
Homepage: https://fedorahosted.org/sanlock/
Version: 3.6.0-2
Section: universe/libs