When more than one OpenTP1 is operating in a running system, they can be switched over all at one time if an error occurs. This is called grouped system switchover.

The grouped system switchover can be performed by grouping multiple OpenTP1s. When OpenTP1s are grouped, if an error occurs on one of them, the group can be replaced with the standby group of OpenTP1s. Each OpenTP1 in a group can be either an OpenTP1 for which group switchover can be performed or an OpenTP1 for which group switchover cannot be performed.

The environment for the grouped system switchover is set using HAmonitor.