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equally well with any number of partitions (as supported by the system
type) by modifying the amount and placement of hardware and the SCM
environment variable values.
______________________ Notes ______________________
View each partition as a separate system.
Ensure that the system comes up as a single partition the first
time you turn power on. Do not turn the key switch on. Only
turn on the AC circuit breakers. Use the SCM
set hp_count 0
command to ensure that the system comes up as a single partition.
Then turn the key switch on to provide power to the system.
To repartition an AlphaServer GS80/160/320 system into two partitions to be
used as TruCluster Server member systems, follow this procedure:
1. If necessary, install a primary PCI drawer for each additional hard
partition beyond partition 0. Install any expansion PCI drawers as
needed to provide additional PCI slots. Ensure that the system already
has a primary PCI drawer for the first partition.
____________________ Note _____________________
We recommend that you install the primary PCI drawers
that contain the master and standby SCM (if there is to be
a standby SCM) in the power cabinet of a GS160 or GS320
or RETMA cabinet for a GS80; they both must be connected
to the OCP.
2. Install the following hardware, as appropriate for your TruCluster
Server configuration, in the primary (or expansion) PCI drawer of each
partition and make all cable connections. Keep your configuration as
symmetrical as possible to make troubleshooting and reconfiguration
tasks easier.
• Each system in a TruCluster Server configuration requires at
least one Memory Channel adapter. Ensure that you abide by the
restrictions described in Section 2.2, and that you connect the cables
for Memory Channel interconnects to the Memory Channel modules
and not to the I/O risers. The type of cables used, BN39B used for
the Memory Channel interconnect are also used to connect the local
I/O risers (on the QBB) to the remote I/O risers (on the PCI drawers).
7–8 Using GS80, GS160, or GS320 Hard Partitions in a TruCluster Server Configuration