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Figure 1–3: Minimum Two-Node Cluster with UltraSCSI BA356 Storage Unit
ID 5
PWR
Shared
SCSI
Bus
Clusterwide
/, /usr, /var
Member 1
Boot Disk
Member 2
Boot Disk
Quorum
Disk
UltraSCSI
BA356
ID 4
Host Bus Adapter (ID 7)
Memory
Channel
Interface
Memory Channel
Host Bus Adapter (ID 6)
Memory Channel
Member
System
2
Member
System
1
Tru64
UNIX
Disk
Shared
SCSI
Bus
ID 6
ID 3
ID 2
ID 1
ID 0
DS-BA35X-DA
Personality
Module
Clusterwide
Data Disks
Do not use for
data disk. May
be used for
redundant power
supply.
Network
ZK-1591U-AI
The configuration shown in Figure 1–3 might represent a typical small or
training configuration with TruCluster Server Version 5.1 required disks.
In this configuration, because of the TruCluster Server Version 5.1 disk
requirements, there will only be two disks available for highly available
applications.
______________________ Note _______________________
Slot 6 in the UltraSCSI BA356 is not available because SCSI ID 6
is generally used for a member system SCSI adapter. However,
1–8 Introduction