Digital PDFs

AN-019

May 2001

2 pages

Original

16.1kB

Document:	CHARON-VAX & Alpha/OpenVMS host cluster configuration
Order Number:	AN-019
Revision:	0
Pages:	2
Original Filename:	AN-019.pdf

OCR Text

CHARON-VAX application note
AN-019 CHARON-VAX & Alpha/OpenVMS host cluster configuration
Author:

Software Resources International

Date: 22-May-2001

The CHARON-VAX implementation for OpenVMS/Alpha can form a VMS cluster with its Alpha host when the
emulator runs VAX/VMS. This offers the possibility for VAX applications to store their data on the Alpha side
and thus make that data easily accessible to other applications running on Alpha / OpenVMS. The procedure to
do so is described in this application note.
Setting up a CHARON-VAX / Alpha cluster configuration is similar to installing and configuring a standard
VMS Cluster. It is assumed that CHARON-VAX has a dedicated Ethernet adapter available in the Alpha host,
which is connected to the same LAN as the Ethernet adapter used by the Alpha/OpenVMS system itself. The
only additional step in the process is to release the Ethernet adapter to be used by CHARON-VAX from the
Alpha cluster node (step 4).
These step-by-step instructions are provided as an example:

1. Register and load the CHARON-VAX license on the Alpha/OpenVMS system.
2. If DECnet-Plus is used on Alpha execute the script:
$ @NET$CONFIGURE ADVANCED
....
* Which configuration option to perform?

[1] : 3

%NET$CONFIGURE-I-SCANCONFIG, scanning device configuration - please wait
* Data Link name to use for EWA0 (DExxx/TULIP)? [CSMACD-0] :
* Routing Circuit Name for Data Link 'CSMACD-0'? [CSMACD-0] :
* Enable Phase-IV Addressing on Routing Circuit 'CSMACD-0'? [YES] :
* Data Link name to use for EWB0 (DExxx/TULIP)? [CSMACD-1] : none
....
* Do you want to generate NCL configuration scripts? [YES] : yes
....

3. Reboot
4. After system start, run the image LAVC$STOP_BUS.EXE in Alpha/OpenVMS to deassign the
cluster from the network adapter used by CHARON-VAX (EWB):
MCR SYS$COMMON:[SYSHLP.EXAMPLES]LAVC$STOP_BUS.EXE EWB

5. On the Alpha system cluster parameters should be set as:
VOTES

EXPECTED_VOTES

6. With the MKDISK utility create an empty disk image for CHARON-VAX.
7. Install OpenVMS on CHARON-VAX.
8. Add the cluster licenses to VAX/VMS.
©2001 Software Resources International. This document is provided for information only and is not a legally binding offer.
Software Resources International reserves the right to change the product specifications without prior notice or retire the
product. The CHARON name and its logo are a registered trademark of Software Resources International. For further
information: www.charon-vax.com, Email: vaxinfo@vaxemulator.com

9. Rename the CHARON-VAX disk to any unique name:
$ SET VOLUME/LABEL=CHRVAX DUA0
$ PRODUCT REGISTER VOLUME OVMSVAXSYS DUA0

10. Configure the VMS cluster on CHARON-VAX (in this example the system name is TST711):
$ @CLUSTER_CONFIG
Cluster Configuration Procedure
Executing on a VAX System
DECnet Phase IV is installed on this node.
This procedure has detected that the LANACP
LAN server process is running on this node.
....
Do you want LANACP instead of DECnet for cluster boot serving? [YES] NO
MAIN MENU
1. ADD TST711 to existing cluster, or form a new cluster.
2. MAKE a directory structure for a new root on a system disk.
3. DELETE a root from a system disk.
4. EXIT from this procedure.
Enter choice [1]:
....
Will the LAN be used for cluster communications (Y/N)? Y
Enter this cluster's group number: 4000
Will TST711 be a boot server [Y]? N
Will TST711 be a disk server (Y/N)? N
Does this cluster contain a quorum disk [N]? N
....
Do you want to run AUTOGEN now [Y]? N

11. Edit the file MODPARAMS.DAT:
Change value of the parameter VOTES to 0.

12. Run the AUTOGEN utility
$ @SYS$UPDATE:AUTOGEN GETDATA REBOOT