Forwarding Alerts - IBM eServer xSeries 455 Type 8855 Hardware Maintenance Manual And Troubleshooting Manual

Note: To ensure the stability of the system, the most current level of firmware must
You must connect an ASM Interconnect module to the Remote Supervisor Adapter
and to each xSeries 455 server that you connect to the ASM interconnect network
bus.
Attention:
Adapter, do not connect the ASM Interconnect module to the Remote Supervisor
Adapter Ethernet connector.
To connect the servers, note the following setup and configuration information:
v Make sure that the ASM interconnect network is set up as a bus topology. You
v Make sure that the total combined length of all Ethernet cables connecting the
v Each Remote Supervisor Adapter, ASM PCI adapter, or ASM processor that is

Forwarding alerts

Remote Supervisor Adapters, ASM PCI adapters, and ASM processors that are
connected to an ASM interconnect network share resources and
systems-management information. This section provides information about how
alerts are forwarded in the ASM interconnect network.
During normal operation, each Remote Supervisor Adapter, ASM processor, or ASM
PCI adapter on the ASM interconnect network communicates with the other
processors and adapters on the network. Processors or adapters that have
modems or Ethernet connections notify the other processors and adapters that
these communications resources are available for use by other servers on the ASM
interconnect network. These resources are then used as ASM interconnect network
resources, enabling Remote Supervisor Adapters, ASM processors, or ASM PCI
adapters on the ASM interconnect network to send alerts using a modem or the
network, even if they do not have a modem or network connection physically
attached.
When alerts are generated, they are forwarded to the Remote Supervisor Adapter,
ASM processor, or ASM PCI adapter on the ASM interconnect network that has the
communication resources to forward the alert. If no system on the ASM interconnect
network meets the requirements, the alert is set for transmission if the connection
type is configured or becomes available later.
If there are multiple modems or network connections in the ASM interconnect
network, you cannot specify which system will receive an alert or which will use its
modem or network connection to forward the alert. If an alert is forwarded to a
Remote Supervisor Adapter, ASM processor, or ASM PCI adapter that is unable to
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IBM xSeries 455 Type 8855: Hardware Maintenance Manual and Troubleshooting Guide
be installed on the Remote Supervisor Adapter that is the main interconnect
gateway for the ASM interconnect network. The most current level of
firmware is available from http://www.ibm.com/pc/support. For more
information about updating firmware, see the Remote Supervisor Adapter
User's Guide on the IBM xSeries Documentation CD.
To avoid damage to the Ethernet connector on the Remote Supervisor
must connect the servers to the ASM interconnect network in a series, with
terminated beginning and end points.
server in the ASM interconnect network does not exceed 91 m (300 ft).
connected to the ASM interconnect network bus counts as one connection. For
example, if an ASM PCI adapter is installed in a server that has an ASM
processor, the processor and the adapter connect to each other using one ASM
interconnect connection, but the processor and the adapter count as two
connections on the ASM interconnect network bus.