- DFU cannot handle volume sets with more than 32 disks.
 - DFU V3.2 runs on Alpha architecture, OpenVMS V7.3-1 or higher.
 - DFU V3.2 runs on Itanium architecture, OpenVMS 8.2 or higher.
 - DFU V3.2 handles files names as case-blind. There is no support
    for case-sensitive filenames.