IBM eserver Cluster 1350, Installation And Service Manual

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Chapter 4. Cabling the Cluster 1350
Most of the cabling in a Cluster 1350 system is installed during manufacturing.
However, there are three instances where cables must be installed at a customer
site:
v
Cables between cabinets
v
Replacements for faulty cables
v
Cables to replacement components
Any cable that fails at the customer site or is connected to components that must
be replaced must be reconnected at the customer site.
The various types of cables in the Cluster 1350 system perform functions such as
providing serial and Ethernet connections to cluster components.
Note: Notes:
v
There are additional color-coded intercabinet Ethernet cables available to
help you organize your cluster cabling by color. The current cable colors
include green, blue, and yellow with lengths varying from 0.6m to 25m.
These cables do not replace previous Ethernet cables but can be used in
place of previous cables if you prefer a color-coded cabling scheme.
Contact your sales representative to order additional color-coded
intercabinet Ethernet cables.
v In some clusters, the FRU interconnect cables can also be grey or white.
Management VLAN
The management VLAN provides the private virtual LAN (VLAN) to manage the
components in the cluster. This VLAN includes the following connections:
v
RS-485 connections to all cluster nodes and storage nodes through the Remote
Supervisor Adapters. These enable diagnostics and monitoring for the cluster and
storage nodes.
v
Serial connections to all cluster components. These provide a path for
configuration of components in the cluster.
v
10/100 Ethernet connections from the Remote Supervisor Adapter in the
management node to the 10/100 Ethernet switch.
Primary cluster VLAN
The primary cluster VLAN provides a 10/100 or 10/100/1000 Ethernet connection
(depending on the selected VLAN type) for communication with cluster nodes and
storage nodes. This VLAN includes the following connections:
v A 10/100 or 10/100/1000 Ethernet connection to all cluster and storage nodes
and other components. This provides the primary communications between the
management node and the other components in the cluster.
v A Gigabit Ethernet trunk line (shared with the management VLAN) for certain
VLAN types only. This serves as a high-speed trunk line for all Ethernet
communication within the cluster.
Optional secondary cluster
The optional secondary cluster provides a second 10/100/1000 Ethernet or 2 Gb
Myrinet switch for communication with cluster and storage nodes. The following
options are available for the secondary cluster VLAN:
© Copyright IBM Corp. 2004
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