IBM System Cluster 1350, Installation And Service

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KVM cabling
The KVM switch allows a maximum of eight connections . Figure 9 on page 29
shows an example of KVM cabling for a cluster configuration. Use the following
guidelines for cabling the KVM switch:
v
Use the information on each end of each cable to create a site map.
v
When routing a KVM cable from a cabinet containing Cluster Nodes to another
cabinet containing the KVM switch, connect a C2T-to-KVM cable to the Cluster
Nodes and use a KVM extension cable to add sufficient length to reach the KVM
switch.
v
Multiple KVM switches can be daisy-chained.
Cluster Nodes (x335s) can be daisy-chained onto a single KVM switch port (up
to 40 cluster nodes). But the Management Node and all the Storage Nodes each
require a separate KVM switch port. Certain systems may require a second KVM
switch. The second switch should be located in the Expansion cabinet that
contains the additional Storage Nodes.
v
When using two KVM switches, connect Port A (the console port) of Switch 2 to
Port 8 of Switch 1. Use a KVM extension cable to make the connection between
the two cabinets. If more length is needed, use two KVM extension cables linked
together.
Figure 8. Intercabinet cabling for Fibre Channel connections.. To avoid making the Storage Node a single point of
failure, connect two Storage Nodes to each Storage Server, as shown.
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Installation and Service