HP OpenVMS 8.x manual Installing the OpenVMS Operating System

parameter is based on the DECnet Phase IV address. SCSSYSTEMID must also be unique within an OpenVMS Cluster.

If you plan to use DECnet, SCSSYSTEMID must be set based on the DECnet Phase IV address.

Do you plan to use DECnet (Yes/No) [YES]: YES

If you answer YES, the information about the DECnet Phase IV addresses is displayed along with a prompt for a DECnet Phase IV address. Enter a valid DECnet Phase IV address, as in the following example:

DECnet Phase IV addresses are in the format

DECnet_area_number.DECnet_node_number

DECnet_area_number is a number between 1 and 63.

DECnet_node_number is a number between 1 and 1023.

If you plan to use DECnet WITHOUT Phase IV compatible addresses, enter 0.0.

Enter DECnet (Phase IV) Address [1.1]: 63.180

A display such as the following informs you of the value assigned to SCSSYSTEMID:

SCSSYSTEMID will be set to 64692.

This was calculated as follows:

(DECnet_area_number * 1024) + DECnet_node_number

If you are not using DECnet, or if you enter 0.0 as the DECnet Phase IV address, you are prompted to enter a SCSSSYSTEMID in the range of 1 to 65535. If this is a standalone system, the default of 65534 is acceptable. However, if this system is part of an OpenVMS Cluster, you must enter a SCSSYSTEMID that is unique within the cluster. The following is a sample display:

The system cannot calculate SCSSYSTEMID from an address that is not compatible with DECnet Phase-IV.

You will have to choose a value for SCSSYSTEMID.

If you plan to use LAT software, you may have to add /NODECNET to any CREATE LINK commands in SYS$MANAGER:LATSYSTARTUP.COM.

Please choose a SCSSYSTEMID between 1 and 65535. If you have multiple OpenVMS systems, the SCSSYSTEMID on each system must be unique.

Enter SCSYSTEMID [65535]: 12345

60 Installing the OpenVMS Operating System