Technical data
• PCI modules designed for 5.0V only operate in 5.0V slots (slots 3, 6,
9, and 10).
• PCI modules designed for 3.3V only operate in 3.3V slots (slots 1, 2,
4, 5, 7, and 8).
• Universal PCI modules can operate in either 3.3V or 5.0V slots.
• A universal PCI module that operates at 66 MHz will only operate at 33
MHz if it is plugged into a 5.0V slot.
• A universal PCI module that operates at 33 MHz will cause the entire
66-MHz bus to operate at 33 MHz if it is plugged into a 3.3V slot.
2.1.2 PCI Modules Supported for Cluster Operations in a TruCluster
Server Configuration
Table 2–2 lists the PCI modules that are supported on an AlphaServer
ES45 Model 2 used in TruCluster Server V5.1A cluster configurations for
shared storage and cluster communications over the cluster interconnect.
Other adapters are supported for local storage and the public network that
are not listed here. See the supported options list for information about
other supported devices.
Table 2–2: ES45 PCI Modules Supported in a TruCluster Server V5.1A
Configuration for Cluster Operations
PCI Module PCI Module
Description
Number
Supported
Restricted to PCI
Slots
Shared Storage
UltraSCSI Host Bus
Adapter (KZPBA-CB)
5.0V/33 MHz
4
a
3, 6, 9, and 10
Fibre Channel Host Bus
Adapter (DS-KGPSA-CA)
Universal/33 MHz
4
b
No slot restriction
c
Cluster Interconnect
Memory Channel
(CCMAB-AA)
5.0V/33 MHz
2
d
3, 6, 9, and 10
3X-DE602-AA Universal/33 MHz
2
No slot restrictions
c
DEGPA-SA Universal/66 MHz
3
1, 2, and 3
e
DEGPA-TA Universal/66 MHz
4 1,2,3,4,5,6,9,
and 10
ef
a
Although 4 KZPSA-CBs can be supported, the number of KZPBA-CB UltraSCSI host bus adapters that can
be installed depends upon the number of Memory Channel modules installed in slots 3, 6, 9, and 10.
b
Four DS-KGPSA-CA Fibre Channel adapters are supported in a switched configuration; A loop
configuration is not supported in a TruCluster Server configuration.
c
If you install a universal 33 Mhz PCI host bus adapter in a 3.3V 66 MHz slot (slots 1, 2, 4, 5, 7, or 8), the bus
will only operate at 33 MHz.
d
Dual Memory Channel adapters must be jumpered for 128 MB.
2–2 Hardware Requirements and Restrictions