IBM xSeries 440 8687, Руководство по техническому обслуживанию аппаратной части

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Planning and cabling the interconnect network
To support the most recent ASM features, a Remote Supervisor Adapter must be
the main gateway interconnect to the ASM interconnect bus if the bus also includes
servers with ASM PCI adapters or ASM processors. The Remote Supervisor
Adapter forwards the ASM information generated by the servers attached to the
ASM interconnect bus to other servers on the Ethernet network. The connected
ASM processors and ASM PCI Adapters are managed through the new user
interface and Web browser access of the Remote Supervisor Adapter.
Note: To ensure the stability of the system, you must have the most current level of
firmware 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 on the World Wide Web at
http://www.ibm.com/pc/support. For more information on updating firmware,
see the Remote Supervisor Adapter User’s Guide for the xSeries 440 on the
Documentation CD.
You must connect an ASM Interconnect module to the Remote Supervisor Adapter
and to each xSeries 440 server that you connect to the ASM interconnect network
bus.
Attention: To avoid damage to the Ethernet connector on the Remote Supervisor
Adapter, do not plug the ASM Interconnect module into the Remote Supervisor
Adapter Ethernet port.
To connect the servers, note the following setup and configuration considerations:
v Make sure that the ASM interconnect network is set up as a bus, not as a ring.
You must connect the servers to the ASM interconnect network in a series, with
terminated beginning and end points.
v Make sure that the total combined length of all Ethernet cables connecting the
server in the ASM interconnect network does not exceed 91 M (300 ft).
v
Each Remote Supervisor Adapter, ASM PCI adapter, or ASM processor that is
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.
Forwarding alerts
Remote Supervisor Adapters, ASM PCI adapters, and ASM processors that are
connected to an ASM interconnect network share resources and
system-management information. This section provides information on 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 a
modem or Ethernet connection 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.
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xSeries 440 Type 8687: Hardware Maintenance Manual