NonStop S-Series System Expansion and Reduction Guide

Planning System Reduction
HP NonStop S-Series System Expansion and Reduction Guide—522465-009
3-6
Determining Communication Paths
Determining Communication Paths
You must determine the direct and indirect communication paths within your donor
system so that you know which enclosures to prepare for online reduction. To trace the
ServerNet connections among enclosures, see Worksheets 9, 10, and 11 in
Appendix C.
When you see from these worksheets which enclosures might be affected by system
reduction, determine with your system analyst or service provider what processes and
other devices might also be affected.
Because the adapters and communications devices in each system are configured
uniquely to that system, these worksheets cannot show every possible direct or indirect
connection. For example, SWAN concentrators might be connected to your system in
several places.
Example Using the ServerNet Worksheets
This subsection illustrates the following steps in completing a ServerNet worksheet:
These worksheets illustrate the maximum configuration of each topology. Your system
might contain fewer enclosures. You must note what your system currently contains to
trace the pathways of ServerNet communication accurately.
For Information About See
The definition of an indirect
communication path
Indirect Communication Paths
on page 3-4
ServerNet connection paths in detail NonStop S-Series Planning and Configuration Guide
Note. The cabling diagrams in this guide identify all ServerNet expansion boards as SEBs.
Your system might have or require modular ServerNet expansion boards (MSEBs) in the slots
designated for SEBs. SEBs and MSEBs are functionally equivalent.
Step Page
1. Choose and Copy the Appropriate Worksheets
3-7
2. Highlight Your Present System Configuration 3-8
3. Black Out the Enclosures to Be Removed 3-10
4. Trace Communication Paths to Each Enclosure 3-11
5. Circle the Affected Enclosures 3-13
6. List Affected Enclosures in Reverse Numerical Order 3-15