IBM 8676 Option Installation Guide - Page 44

Cabling an ASM interconnect network, An Advanced System Management ASM bus is integrated into the C2T

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If you turn off the selected server, the monitor screen goes blank, and you must select another server. No more than two adjacent servers in the chain can be disconnected from their power source for the chain to work properly. Cabling an ASM interconnect network An Advanced System Management (ASM) bus is integrated into the C2T interconnect cables, so by adding one or more Remote Supervisor Adapters to a C2T chain of servers, you can create an Advanced System Management (ASM) interconnect network. For information about using a Remote Supervisor Adapter for remote server management, see the documentation that comes with the adapter. Before cabling the ASM interconnect network, review the following information: v The cables in an ASM interconnect network are hot-swappable. v Make sure that the firmware for the Remote Supervisor Adapter, ASM processor, and integrated system management processor (ISMP) are at the latest level. v The servers in an ASM interconnect network are referred to by their assigned addresses, not by their positions in the rack. An ASM interconnect network can have up to 24 RS-485 connections, depending on the configuration. The connections can include Remote Supervisor Adapters, ASM processors, ASM PCI adapters, and ISMPs. Use the following information to determine the number of servers and connections that you can have on your ASM interconnect network: v Each Remote Supervisor Adapter, ASM processor, ASM PCI adapter, and ISMP in a server that is connected to the network uses one connection. For example, if a server that is connected to the network has a Remote Supervisor Adapter and an integrated ASM processor, the server uses two connections on the network. v The network must include at least one server with a Remote Supervisor Adapter (either installed as an option or preinstalled in the server). You can connect up to 23 xSeries 335 servers into an ASM interconnect network using one Remote Supervisor Adapter. However, if you use both xSeries 335 and xSeries 330 servers in the network, the xSeries 330 servers must be the lowest-numbered servers in the chain. The following illustration shows an ASM 32 IBM xSeries 335 Type 8676: Option Installation Guide

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If you turn off the selected server, the monitor screen goes blank, and you must
select another server. No more than two adjacent servers in the chain can be
disconnected from their power source for the chain to work properly.
Cabling an ASM interconnect network
An Advanced System Management (ASM) bus is integrated into the C2T
interconnect cables, so by adding one or more Remote Supervisor Adapters to a
C2T chain of servers, you can create an Advanced System Management (ASM)
interconnect network. For information about using a Remote Supervisor Adapter for
remote server management, see the documentation that comes with the adapter.
Before cabling the ASM interconnect network, review the following information:
v
The cables in an ASM interconnect network are hot-swappable.
v
Make sure that the firmware for the Remote Supervisor Adapter, ASM processor,
and integrated system management processor (ISMP) are at the latest level.
v
The servers in an ASM interconnect network are referred to by their assigned
addresses, not by their positions in the rack.
An ASM interconnect network can have up to 24 RS-485 connections, depending
on the configuration. The connections can include Remote Supervisor Adapters,
ASM processors, ASM PCI adapters, and ISMPs. Use the following information to
determine the number of servers and connections that you can have on your ASM
interconnect network:
v
Each Remote Supervisor Adapter, ASM processor, ASM PCI adapter, and ISMP
in a server that is connected to the network uses one connection. For example, if
a server that is connected to the network has a Remote Supervisor Adapter and
an integrated ASM processor, the server uses two connections on the network.
v
The network must include at least one server with a Remote Supervisor Adapter
(either installed as an option or preinstalled in the server).
You can connect up to 23 xSeries 335 servers into an ASM interconnect network
using one Remote Supervisor Adapter. However, if you use both xSeries 335 and
xSeries 330 servers in the network, the xSeries 330 servers must be the
lowest-numbered servers in the chain. The following illustration shows an ASM
32
IBM xSeries 335 Type 8676: Option Installation Guide