OpenVMS Cluster Systems - OpenVMS Systems - HP

Sample Programs for LAN Control
D.5 Using the Network Failure Analysis Program
D.5.1 Create a Network Diagram
Follow the steps in Table D–2 to create a physical description of the network
configuration and include it in electronic form in the LAVC$FAILURE_
ANALYSIS.MAR program.
Table D–2 Creating a Physical Description of the Network
Step Action Comments
1 Draw a diagram of your OpenVMS Cluster
communications network.
When you edit LAVC$FAILURE_ANALYSIS.MAR,
you include this drawing (in electronic form) in the
program. Your drawing should show the physical
layout of the cluster and include the following
components:
• LAN segments or rings
• LAN bridges
• Wiring concentrators, DELNI interconnects, or
DEMPR repeaters
• LAN adapters
• VAX and Alpha systems
2 Give each component in the drawing a unique label.
For large clusters, you may need to verify the
configuration by tracing the cables.
If your OpenVMS Cluster contains a large number
of nodes, you may want to replace each node name
with a shorter abbreviation. Abbreviating node
names can help save space in the electronic
form of the drawing when you include it in
LAVC$FAILURE_ANALYSIS.MAR. For example,
you can replace the node name ASTRA with A and
call node ASTRA’s two LAN adapters A1 and A2.
3 List the following information for each component:
• Unique label
• Type [SYSTEM, LAN_ADP, DELNI]
• Location (the physical location of the component)
• LAN address or addresses (if applicable)
Devices such as DELNI interconnects, DEMPR
repeaters, and cables do not have LAN addresses.
(continued on next page)
Sample Programs for LAN Control D–5