IBM System Cluster 1350, Installation And Service

Page: 35 / 170

Chapter 4. Cabling
Contents
Overview of Cluster 1350 cabling
The various types of cables in the Cluster 1350 system perform the following
functions:
Management VLAN
Provides the private virtual LAN (VLAN) to manage the components in
the cluster. This VLAN includes the following connections:
v
RS485 connections to all Cluster Nodes and Storage Nodes through the
RSA boards. 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 RSA card in the Management
Node to the 10/100 Ethernet Switch.
Primary Cluster VLAN
Provides a 10/100 or a 10/100/1000 Ethernet (depending on the VLAN
type selected) for communications with Cluster Nodes and Storage Nodes.
This VLAN includes the following connections:
v
A 10/100 or 10/100/1000 Ethernet 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 communications within the cluster.
Optional Secondary Cluster VLAN
Provides a second 10/100/1000 Ethernet or 2–GB Myrinet switch for
communications with Cluster and Storage Nodes. There are several options
for the secondary cluster VLAN:
v
A 10/100/1000 Ethernet using a Cisco 4003 or 4006 switch
v
A 2-GB Ethernet using a high-speed Myrinet switch. The Myrinet switch
uses optical cables for communication with Cluster and Storage Nodes.
KVM Connects the KVM ports on all nodes (Cluster, Storage, and Management)
to a single console through a central switch.
Fibre Channel
Provides Fibre Channel connections between the Storage Nodes and the
Storage Servers, and between the Storage Servers and the Storage
Expansion Units.
Power Provides the power to the cluster components. This includes both the AC
power provided to the entire cabinet through the PDUs and remote power
provided to the RSA boards and the port servers through the Power
Management Module.
VLAN options
The Cluster 1350 supports a variety of VLAN options. Currently, there are six basic
configurations. Point-to-point wiring information is printed on each cable. Check
© Copyright IBM Corp. 2003
17