IBM Z10 BUISNESS CLASS Z10 BC, Installation Manual

Page: 66 / 132

Customer
Network 1
External Ethernet switch External Ethernet switch
Optional
Customer
Network 2
B
P
H
A
J02
J01
J02
J01
B
P
H
B
z10
CPC
HMC
HMC
System z10
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. The Hardware Management Console and
the support Elements both come with Dual Ethernet LAN adapters.
The communication protocol (TCP/IP) used in Support Element to Hardware
Management Console communication is defined for both adapters in the support
elements.
Notes on wiring with multiple adapters:
1. The Hardware Management Console supports dual paths to support Elements.
This allows automatic redundant network paths so that the failure of a single
network has no affect on Hardware Management Console to Support Element
communication.
2. Multiple LAN adapters in a Hardware Management Console allow that Hardware
Management Console to connect to two independent networks. The use of a
Token Ring adapter plus an Ethernet adapter can aid in the migration from
Token Ring environments to Ethernet environments.
3. Multiple LAN adapters in a Support Element allow two different Hardware
Management Consoles to have independent paths to that SE, or to provide
redundant paths from one HMC to that SE. The intent is to help ensure a path
to the server from an HMC if there is a failure or outage in one of the networks.
4. When configuring multiple adapters the address must be defined in different
subnets.
Because you may be connecting this system to existing LANs that use Ethernet
adapters, the following Ethernet wiring scenarios are presented:
Level 03c, May 2011
54
z10 BC IMPP