Mac OS free diskspace is sometimes reported incorrectly because some machines use a large amount of "purgeable" data. The terminal-based disk usage utility does not account for this type of data and simply may assume the disk is almost full, when in reality Mac OS does not report it that way since it will delete this purgeable data as soon as space is needed by the OS.

Atera Agent should be able to differentiate this data type to more accurately report available disk space.