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Collecting information about the source VAX system

The first step is to determine the exact configuration of your VAX hardware in order to create the CHARON -VAX VM configuration file.

Turn on your source VAX system. At the ">>>" prompt, issue "show qbus" and "show device" commands:

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DESQA is mapped to a network interface having the name "Charon". This interface will be used for CHARON -VAX VM (see the Installation section for more details) on this particular host.

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This operation can also be done using Windows Explorer.

Next, create disk images using the "MkDisk" utility Alternatively it is possible to put the tape and disk images in CHARON VM Home Directory.

Start the "MkDisk" utility from by pressing the "Disk Image generator" button in the "Start" menu:

Image Removed

Host Information & Utilities" tab of the CHARON Virtual Machines Manager:

Image Added 

The main dialog of the utility will appear:

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Select "VAX" in the "Select System" drop-down menu, "MSCP" in the "All Controllers" drop-down menu and "RZ24" (for example) in the "Select Disk Type" drop-down menu, then press .

Press then the "Create Disk Image" button:

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The utility will ask you to specify the output file name. Select the "C:\My disks" directory created just before (or create it directly in the dialog) and press "Save" button:

The "MkDisk" utility will create the requested disk image:

Repeat this sequence for the disks "RZ23RZ28.vdisk", "RZ25RZ22.vdisk" and "RZ26RZ23.vdisk". Put Place them in the same "C:\My disks" folder. 

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The next step is to transfer the data from the source VAX system to CHARON -VAXVM. The easiest way to do this is via backup over the network. But for this operation we need a bootable, network-enabled operating system on a CHARON-VAX disk image or physical disk.

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Create an empty disk image for installation of VAX/VMS and another one for storing backups from the source VAX system as it is shown in the section above.

Run CHARON -VAX VM and boot from "dua4" ("migration.cfg" is the configuration file we use in this example):

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Now we are ready to create disk backups from the source VAX system to CHARON-VAX.

Boot CHARON -VAX VM and make sure that the source VAX system is available via DECnet. 

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Once the backup procedure completes, the disk "DUA3" of CHARON -VAX VM will contain 2 savesets: "DUA0.BCK" and "DUA1.BCK"

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Next, restore the new savesets to their corresponding virtual disks. Login to CHARON -VAX VM and issue this sequence of commands to restore all the savesets created on the previous step:

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If you are going to have CHARON -VAX VM and the original physical VAX on the network at the same time, you must change the network identity

of one (usually the CHARON-VAX). The easiest way is to boot the CHARON -VAX VM on the restored system disk with the network Disabled and

configure new addresses, as needed. The NIC can be disabled with a "connection:disabled" statement in the CHARON VM cfg file.

Then Enable the network and reboot.

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• Connect a SCSI tape drive to CHARON-VAX / CHARON-PDP host via a PCI card 
  
  • Map the tape drive in the CHARON -VAX / CHARON-PDP VM configuration file

         a. Restore source VAX system backups from tape to disk images via VMS/RSX11/RT11 running on CHARON -VAX / CHARON-PDPVM
         b. Boot from standalone backups and restore its content to CHARON -VAX / CHARON-PDP VM virtual disks

  • Dump source VAX/PDP11 system backups to tape images with "mtd" utility and:
         a. Boot from freshly installed VMS/RSX11/RT11 system and restore the tape images to CHARON -VAX / CHARON-PDP VM virtual disks
         b. Boot from standalone backups and restore its content to CHARON -VAX / CHARON-PDP VM virtual disks

• Create a network cluster between the source VAX/PDP11 system and CHARON -VAX / CHARON-PDP VM (it is possible to use the source system as boot server); then simple backup from one disk to another:

  $ BACKUP/IMAGE/IGNORE=INTERLOCK REAL$DUA0: DUA0:

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