The value entered for Partition is the partition to check the file system of.
The value entered for Partition is passed into File Service's getPartitionFormat method. The result of which is compared against the value entered for File System to determine if there is a match.
A directory path can be entered for this property and the Partition will be determined from this path. This allows developers to specify such things as $P(absoluteInstallLocation) in this field. If no value is entered, the Partition will be determined from the bean's install location.