use Win32::DriveInfo;
    ($SectorsPerCluster,
     $BytesPerSector,
     $NumberOfFreeClusters,
     $TotalNumberOfClusters,
     $FreeBytesAvailableToCaller,
     $TotalNumberOfBytes,
     $TotalNumberOfFreeBytes) = Win32::DriveInfo::DriveSpace("\\\\serv\\share"));