Technical data

Table 2–2: ES45 PCI Modules Supported in a TruCluster Server V5.1A
Configuration for Cluster Operations (cont.)
e
If you install a universal 66 Mhz PCI host bus adapter in a 5.0V 33 MHz slot (slots 3, 6, 9, or 10), the module
will only operate at 33 MHz.
f
The DEGPA-TA Gigabit Ethernet adapter cannot be installed in PCI bus 1.
2.1.3 Differences in PCI Edge Connectors
The differences in PCI slots and module edge connectors prevent you from
installing a 5.0V module into a 3.3V slot.
_____________________ Caution _____________________
Do not attempt to plug a 5.0V module into a 3.3V PCI slot; you
can damage the module or PCI backplane.
A universal PCI module, which operates at either 3.3V or 5.0V, can be
plugged into any PCI slot.
2.2 Hardware Restrictions
The following sections describe the hardware requirements and restrictions
particular to each device.
2.2.1 Member System Restrictions
The requirements for member systems in a TruCluster Server cluster are as
follows:
• The minimum ES45 Alpha System Reference Manual (SRM) console
firmware required is V5.9-10.
You can obtain firmware information from the Compaq Web site at the
following URL: http://www.compaq.com.
In the Support column, select Software & Drivers, then in the Servers
column, select AlphaServer, then select the AlphaServer ES45 system.
• If the cluster has any system with SRM console firmware earlier than
Version 5.7, that system may not be able to boot from a disk behind an
HSZ80, HSG60, or HSG80 controller. The member may fail to boot,
indicating "Reservation Conflict" errors.
• TruCluster Server Version 5.1A supports eight-member cluster
configurations as follows:
Hardware Requirements and Restrictions 2–3