Technical data

2
Hardware Requirements and Restrictions
This chapter describes the hardware requirements and restrictions for
configuring an AlphaServer ES45 system in a TruCluster Server Version
5.1A cluster.
For other restrictions not listed here, see the hardware requirements and
restrictions chapter of Cluster Hardware Configuration.
2.1 PCI Configuration
The AlphaServer ES45 Model 2 supports a 10-slot PCI backplane. It consists
of both 3.3V 66-MHz and 5.0V 33-MHz slots over four PCI buses (hoses).
Table 2–1 lists the PCI bus configuration. The fourth column lists the logical
slot number that is displayed by a
show config console command.
Table 2–1: PCI Bus Configuration
PCI Slot
a
Voltage
b
Bus Number
c
SRM Logical Slot
d
1
3.3V
2
Hose 2 Slot 1
2
3.3V
2
Hose 2 Slot 2
3
5.0V
0
Hose 0 Slot 11
4
3.3V
3
Hose 3 Slot 2
5
3.3V
3
Hose 3 Slot 1
6
5.0V
0
Hose 0 Slot 10
7
3.3V
1
Hose 1 Slot 2
8
3.3V
1
Hose 1 Slot 1
9
5.0V
0
Hose 0 Slot 9
10
5.0V
0
Hose 0 Slot 8
a
PCI slots 4 through 10 are hot-pluggable slots (not supported in Tru64 UNIX Version 5.1A).
b
The 3.3V slots operate at a bus speed of 66 MHz; the 5.0V slots operate at a bus speed of 33 MHz.
c
The bus number shows up as hose number in the show config command output.
d
A device installed in the physical PCI slot (shown in the first column) will have the logical slot ID (shown in
the last column) in the show config command output.
2.1.1 PCI Configuration Guidelines
Ensure that you abide by the following PCI configuration restrictions:
Hardware Requirements and Restrictions 2–1