Check manual page of fast_lta_headunit.replication
FAST LTA Storage Systems: Replication Status and Mode
Checks if the Replication between Head Units is running on FAST LTA Storage
System. Returns OK if running and CRIT if not.
The replication mode (master, slave or standalone) is displayed only.
It does not trigger a status change of the check.
Finds exactly one check on every system (head unit).