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Introduction

CHARON-VAX provides two SCSI controllers for the SCSI and SCSI/QBUS models of VAX.

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CHARON-VAX is able to boot from disk images of any VAX/VMS version, starting with 4.5 or higher for MicroVAX II or VAX 3600 and VMS 5.5-2 or higher for the VAX4000.

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Mapping to host resources

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(info) OpenVMS version 5.5-2H4, or above, is required to use the "pkb" controller.

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virtual_scsi_disk

Use the "virtual_scsi_disk" mapping for disk containers and physical disks. This is the most convenient way of connecting disks to SCSI adapters in CHARON-VAX

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Warning

Unlike MSCP controlled disk images, a disk image connected to a SCSI controller as a virtual SCSI disk CANNOT be replaced by another disk image unless "removable" parameter is set for this particular disk image.

Example:

set pka_0 container[2] = "C:\Charon\Disks\my_removable_disk.vdisk"
set pka_0 removable[2] = true

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floppy_scsi_device

Use "floppy_scsi_device" for host floppy drives.

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load floppy_scsi_device/chscsi pka_0 scsi_bus=pka scsi_id=0
set pka_0 container= "\\.\A:"

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A:"

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virtual_scsi_tape

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Parameter

container[N]

N=0…7

Type

Text String

Value

A string containing the full path to a tape container. If the specified tape image does not exist, CHARON-VAX creates it.

If only the name of the tape container is specified, CHARON-VAX will look for the container in the folder where the emulator executable resides, typically "C:\Program Files (x86)\CHARON\Build_XXXXX\x86" (Windows x64; for Windows x86 the path is "C:\Program Files\CHARON\Build_XXXXX\x86").


Warning

If the "CHARON Guest Utilities for OpenVMS" (CHARONCP) package is used there is a possibility not to specify the exact tape container on CHARON start since it can be specified later using the package.

In this case the syntax is:

load virtual_scsi_tape/chscsi pka_0 scsi_bus=pka scsi_id=0
set pka_0 container[0]=".vtape"


Warning

Using compressed folders to store virtual disks and tapes is not supported


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set pka_0 container = "C:\Charon\Tapes\tape1.vtape"
set pka_0 media_type = "TLZ08"

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virtual_scsi_cdrom

Use "virtual_scsi_cdrom" to connect IDE or SATA host CD-ROM or *.iso file to CHARON-VAX.

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This example associates an unallocated CD-ROM drive "\\.\CdRom0" with virtual_scsi_cdrom "pka_0".

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physical_scsi_device

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This example associates a host tape device "\\.\Tape0" with physical_scsi_device "pka_0".

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