Technical data

Table 11–1: Hardware Components Used for Configuration Shown in
Figure 11–2
Callout Number
Description
1
BN21W-0B HD68 Y cable
2
H879-AA HD68 terminator
3
BN38C or BN38D HD68 to VHDCI cable
ab
4
H8861-AA VHDCI trilink connector
5
BN39B-04 or BN39B-10 Memory Channel cable
6
BN21K, BN21L, or 328215-00X HD68 to HD68 cable
a
A BN38E-0B technology adapter cable may be connected to a BN37A cable and used in place of a BN38C
or BN38D cable.
b
The maximum combined length of the BN38C (or BN38D) and BN37A cables on one SCSI bus segment
must not exceed 25 meters (82 feet).
If you have performed each step correctly, each of the first two member
systems is prepared to be added to three other member systems on a shared
SCSI bus.
You can install Tru64 UNIX and TruCluster Server Version 5.1A software at
this time, or you can wait until all cluster hardware is installed.
You need to configure two four-node shared SCSI buses to create your
eight-node shared SCSI cluster. The next two sections cover the steps
needed to configure member systems 3, 4, and 5 on a shared SCSI bus with
member system 2, and member systems 6, 7, and 8 on a shared SCSI bus
with member system 1.
11.2.2 Cabling the Second Externally Terminated Shared SCSI Bus
So far, you have configured a two-node externally terminated shared SCSI
bus made up of member systems 1 and 2. This section covers the steps
needed to configure member systems 3, 4, and 5 on a shared SCSI bus with
member system 2.
Figure 11–3 shows a detailed illustration of member systems 2, 3, 4, and 5
on the second shared SCSI bus. Table 11–2 shows the components needed to
configure the systems shown in Figure 11–3 into the cluster.
To configure member systems 2, 3, 4, and 5 on the second four-node shared
SCSI bus, follow these steps:
1. Install the Memory Channel adapters on member systems 3, 4, and 5.
See Chapter 5 for installation and jumper information on the Memory
Channel adapters. Delay testing the Memory Channel until you have
installed all hardware.
Configuring an Eight-Member Cluster Using Externally Terminated
Shared SCSI Buses 11–9