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7.2 Hardware Requirements for a Hard Partition in a Cluster
The TruCluster Server hardware requirements are the same for an
AlphaServer GS80/160/320 hard partition as any other system in a cluster.
You must have:
• A supported host bus adapter connected to shared storage. This may be
a KZPBA-CB for parallel SCSI, or a KGPSA-CA for Fibre Channel.
• One or more network connections.
• A Memory Channel interface. The AlphaServer GS80/160/320 system
supports only the MC2 products.
Each AlphaServer GS80/160/320 hard partition that is used in a cluster
must contain at least one QBB with a minimum of one CPU and one memory
module. Additionally, there must be:
• At least one local I/O riser module in the partition. Figure 7–1 shows a
portion of an AlphaServer GS160 QBB with an I/O riser module with a
BN39B cable connected to port 0.
• At least one I/O riser in the partition must be connected to a primary
PCI drawer that provides the console terminal and operating system
boot disk. For example, the portion of the cable on port 0 of the local I/O
riser shown in Figure 7–1 could be connected to the I/O Riser 0 (
0-R)
connector in Figure 2–1 and Figure 7–3.
A primary PCI drawer contains a standard I/O module that provides
both standard reference module (SRM) and system control manager
(SCM) firmware. You can connect additional I/O risers in the partition
to expansion PCI drawers.
7–2 Using GS80, GS160, or GS320 Hard Partitions in a TruCluster Server Configuration