Check manual page of fast_lta_silent_cubes.capacity
FAST LTA Storage Systems: Total Capacity over all Silent Cubes
Checks the total / used capacity over all silent cubes connected to a FAST
LTA Storage System.
Returns WARN or CRIT if usage is above given levels.
It uses the check logic of the df check, so for configuration
parameters and examples please refer to the man page of df.
"Total" for now is the only item.
Finds exactly one check on every system (head unit).