Page Comparison

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• physical disk
  • "<file-name>.vdisk"
    Mapping to the file representing a physical disk of the VAX/PDP11 system (disk image). 
    These files can be created from scratch with "MkDisk" utility. Data and OS disks backups are transferred from the original system via tapes or network and restored into these container files. 
    Mapping may also include the full path (recommended), for example: "C:\My disks\my_boot_disk.vdisk"
  • "\\.\PhysicalDriveN"
    Mapping to physical disk. Be careful not to destroy all the information from the disk dedicated to CHARON-VAX / CHARON-PDP by mistake!These disks must not be formatted by the host OS.
  • "\\.\PhysicalDrive(DevID =XXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX)"
    Mapping to physical disk by its WWID. Be careful not to destroy all the information from the disk dedicated to CHARON-VAX / CHARON-PDP by mistake!These disks must not be formatted by the host OS.
    

    DevID addresses the target physical disk by its WWID (hexadecimal 128-bit identifier assigned to the disk drive by its manufacturer/originator).

    Example:

    Div class small set DUA container[2]="\\.\PhysicalDrive(DevID=6008-05F3-0005-2950-BF8E-0B86-A0C7-0001)"

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• iSCSI disks

  • "\\.\PhysicalDrive(iScsiTarget = <iSCSI target>, LUN = <LUN number>)"
    iScsiTarget addresses the disk by its iSCSI target name.

    LUN specifies LUN on connected iSCSI disk. 

    Example:

    Div class small set DUA container[3]="\\.\PhysicalDrive(iScsiTarget=iqn.2008-04:iscsi.charon-target-test1, LUN=1)"

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• CDROM drive
  • "\\.\CdRomN"
    .
• ISO file (for reading distribution CD-ROM image)
  • "<file-name>.iso"
    Mapping may also include the full path (recommended), for example: "C:\My disks\vms_distributive.iso"
    .
• Floppy drive
  • "\\.\A:"
    .
• Other type of drive (for example magneto-optical drive)
  • "\\.\<N>:"
    

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Numbers in the square brackets represent unit numbers associated with each container of the MSCP controller. For example, the 3rd "set DUA" line of the configuration sample above creates disk "DUA2". The maximum unit number allowed is 9999, significantly more than the original hardware provided.

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Follow this link for details of (T)MSCP controllers configuration.

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SCSI controller NCR53C94

The VAX 4000 and MicroVAX 3100 have an NCR53C94 SCSI controller onboard for support of different types of SCSI devices including disks and tapes. Optionally a second controller can be added.

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