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Level 04a, June 21, 2004
Hardware Management Console and Support Element Wiring Options
A local Hardware Management Console must be connected to its Support Elements
using Local Area Network (LAN) wiring. zSeries 800s provide both Token Ring and
Ethernet options for the LAN wiring between the Hardware Management Console
and the Support Elements. The necessary LAN adapters for the Support Elements
and the Hardware Management Console may be specified as features on the
system order.
In the Support Elements, one Token Ring adapter and one Ethernet adapter are
included as standard. Two Ethernet adapters may be specified as an optional
feature. This eliminates the Token Ring adapter and replaces it with a second
Ethernet adapter.
In the Hardware Management Console, one Ethernet adapter is included as
standard, and one Token Ring adapter is available as an optional feature.
This combination of adapter options leads to 4 possible wiring scenarios:
v Token Ring only
v Ethernet only, one path
v Ethernet only, two paths
v Token Ring and Ethernet
Notes on wiring with multiple adapters:
1. It is intended that a Hardware Management Console and an SE be connected
2. Multiple adapters in a Hardware Management Console allow that Hardware
3. Multiple adapters in a Thinkpad SE are intended to allow two different
The following diagrams and paragraphs describe the 4 wiring scenarios:
by only one LAN
Management Console to connect with two independent sets of SEs, one set on
a Token Ring and a second set on an Ethernet.
This is done to allow for migration from Token Ring environments to Ethernet
environments.
Hardware Management Consoles to have independent paths to the SE.
This is done so that the console can be controlled if one LAN goes down.
Chapter 4. Hardware Management Console and Support Element Communications
4-3
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