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Table of Contents

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Introduction

This section describes how to migrate your HP Alpha system to CHARON-AXP. We will use a sample HP AlphaServer ES40 system running OpenVMS to demonstrate the migration procedure. The . This chapter also contains some instructions for Tru64 UNIX, but it mainly concentrates on how to migrate OpenVMS hosts. The process is similar for all CHARON-AXP models.

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Collecting information about the source HP Alpha system

The first step is to determine the exact configuration of your HP Alpha hardware in order to create the CHARON-AXP configuration file.

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Info

In case of Tru64 UNIX V5 running on the host system it is recommended to use the following commands to get information on the host configuration:

CommandDescription
#

# /sbin/hwmgr view devices

Get detailed information about the host hardware configuration

# /sbin/hwmgr show scsi

Get specific information about the host SCSI controllers and attached disks
#

# /sbin/hwmgr view hierarchy

Get information about the host controllers

Please reference to the Tru64 UNIX User's Guide for more details.


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The source HP Alpha peripheral configuration in this example is:

ControllerDevices on controllerDescription
KZPBA

-DKA0 (RZ28)
-DKA100 (RZ22)
-DKA200 (RZ23) 
-MKA600 (tape) 

SCSI disk/tape controller
KGPSA-CA-DGA0 (RZ24)FC disk controller
OPA0
System console

Acer Labs 1543C IDE/ATAPI CD-ROM adapter

-DQA0IDE CD-ROM controller
EWA0
Network interface, MAC address: "F8-D1-11-00-67-E6"

...

>>>show mem

System Memory Resources on 12-SEPMAR-2017 2020 09:29:16.42

Physical Memory Usage (pages): Total Free In Use Modified
Main Memory (512.00MB) 65536 56496 8610 430

...

>>>

So the collected information about the HP AlphaServer ES40 system is:

ComponentValue
System Type

AlphaServer ES40 6/667

Serial Number

SN01234567

Number of CPUs4
System memory512 Mb

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To find out the exact types of controllers and other useful information refer to the source HP Alpha system documentation.

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Creation of CHARON-AXP configuration file

Using the above information, the following configuration can be created:

#
# HP AlphaServer model: AlphaServer ES40 6/667
#

set session hw_model = AlphaServer_ES40
set ace cpu_architecture = EV67
set rom dsrdb[0] = 1820 system_name = "AlphaServer ES40 6/667"

...

#
# Override default System Serial Number, set it to "SN01234567"
#

set rom system_serial_number = SN01234567

#
# Specify RAM size: 512 Mb
#

set ram size=512

#
# Map OPA0 console to the xtem from which CHARON-AXP runs
#

set COM1 alias=OPA0 line=(console)

#
# Connect the emulator's DQA0 to the host's ATAPI CD/DVD-ROM drive.
#

set ide container="/dev/cdrom"

#
# Load optional DE500BA PCI Ethernet Adapter (EWA0) and map it to the "eth1" host network interface
#

load DE500BA/dec21x4x EWA interface=EWA0
load packet_port/chnetwrk EWA0 interface="eth1"

#
# Load DEC-KZPBA SCSI controller and map it to 3 disk containers and 1 tape container
#

load KZPBA PKA scsi_id = 7

set PKA container[0] = "/my_disks/bootable.vdisk"
set PKA container[100] = "/my_disks/RZ22.vdisk"
set PKA container[200] = "/my_disks/RZ23.vdisk"

set PKA container[600] = "/my_tapes/my_tape.vtape" 

#
# Load DEC-KGPSA-CA PCI FC adapter and map it to a disk container
#

load KGPSA FGA

set FGA container[0] = "/my_disks/RZ24.vdisk"

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Making disk images

In our example, possible mappings of the KZPBA SCSI controller include disk and tape images. Tape images have not to be manually created whereas you have to provision disk images, as described below.

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$ mkdskcmd -d rz24 -o /my_disks/rz24.vdisk
Please wait...
100% done
Success.
$ mkdskcmd -d rz23 -o /my_disks/rz23.vdisk
Please wait...
100% done
Success.
$ mkdskcmd -d rz22 -o /my_disks/rz22.vdisk
Please wait...
100% done
Success.
$ mkdskcmd -d rz28 -o /my_disks/bootable.vdisk
Please wait...100% done
Success.

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Installation of HP Alpha operating system

The next step is to transfer the data from the source HP Alpha system to CHARON-AXP. The easiest way to do this is via backups over the network. For this operation we need a bootable, network-enabled operating system on a CHARON-AXP disk image or physical disk.

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

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Run CHARON-AXP and boot from the CDROM named "dqa0" ("migration.cfg" is the configuration file we use in this example):

$ es40.exe migration.cfg

initializing ...

polling for units on kzpba0, slot 2, bus 0, hose 1 ...
pka0.0.0.2.1 PKA0 Q-Logic/ISP PCI SCSI HBA

... enter console

CHARON-AXP/ES40 for Linux (AlphaServer ES40 6/667), Version 4.911.1940120403
(C) 2009-2018 2020 STROMASYS SA.
All rights reserved.

P00>>>boot dqa0

...

newvms$ INIT DKA300: SCRATCH
newvms$ MOUNT/SYSTEM/NOASSIST DKA300: SCRATCH

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Making remote backups

Now we are ready to create disk backups from the source HP Alpha system to CHARON-AXP.

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When the backup procedure will be completed, the disk "DKA300" of the CHARON-AXP virtual machine will contain 3 savesets: "DKA0.BCK", "DKA100.BCK" and "DKA200.BCK"

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Restore backups to CHARON-AXP disks

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

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Then Enable the network and reboot.

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Alternative ways of data transfer

Some alternative methods of data transfer are also possible. For example:

  • Connect a SCSI tape drive to the CHARON-AXP host via a PCI card 
    • Map the tape drive in the CHARON-AXP configuration file

           a. Restore the source HP Alpha system backups from tape to disk images via OpenVMS running on CHARON-AXP.
           b. Boot from standalone backups and restore the content to CHARON-AXP virtual disks.

    • Dump the source HP Alpha system backups to tape images with the "mtd" utility and:
           a. Boot from the freshly installed OpenVMS system and restore the tape images to CHARON-AXP virtual disks.
           b. Boot from standalone backups and restore the content to CHARON-AXP virtual disks.

  • Create a network cluster between the source HP Alpha system and CHARON-AXP (it is possible to use the source system as a boot server) then perform backups from one disk to another:

    $ BACKUP/IMAGE/IGNORE=INTERLOCK REAL$DKA0: DKA0:

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