CFDiskIO::getPartitionNumber

Description: Returns the physical partition number of a virtual partition.
Parameter:

• vDisk: Internal disk number (for accessing the disk information in the array).
• vPart: the virtual partition number, that is used to build the variable name to access the associative array.
• return: This will returned in case of an error, if set to another value, than 'null'.

Returns:

• Physical partition number of a virtual partition.