Compaq ProLiant 1000 PCI Bus Numbering in a Microsoft Windows NT Environment - Page 23

Reviewing the Test 2 Configuration, Comparison of Test 1 to Test 2 - Configuration A, Configuration B

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PCI Bus Numbering in a Microsoft Windows NT Environment 23 Reviewing the Test 2 Configuration In Test 2, as in Test 1, the PCI BIOS begins the discovery process by identifying buses on the Primary PCI Bus, which is assigned bus 0. Slot 6 on the Tertiary Bus now contains a NC3131 Fast Ethernet NIC (a bridged controller), which increments the bus number assignment to bus 6. The network controller in slot 5 is also assigned bus 5 as it was before. At this point, Windows NT is not aware that the bus number assignments have changed. The bindings for the network controller in slot 6 are no longer applicable and must be manually reset for this controller to function in the configuration again. Refer to the "Compaq Network and Teaming Configuration Utility" section in this document for instructions on how to reset the bindings. Comparison of Test 1 to Test 2 - Configuration A When you reboot the server and run the System Configuration utility to view the hardware configuration changes, it displays slot and bus number assignments. Test 2 data was recorded and compared to Test 1. A side-by-side comparison of the slot configurations and bus numbers of each device in Test 1 to the slot configurations and bus numbers of each device in Test 2, illustrates what bus numbers were changed after modifications took place. Slot Type Controller Test 1 Test 2 Bus Assignment Slot 1 Empty N/A Slot 2 Empty N/A Slot 3 Empty N/A Slot 4 Empty N/A Slot 5 NC3123 (non-bridged) $ $ Bus 5 - No Change Slot 6 NC3131 (bridged) $ Bus 6 - New Slot 7 Empty N/A Slot 8 Empty N/A Configuration B, ProLiant 8000 Configuration B included two installations tested on the ProLiant 8000. The test 1 server was set up as an original Window NT server configuration. All the controllers included in this configuration were installed in the server before Windows NT was loaded on the system. Because they were a part of the original configuration, Windows NT detected the network controllers during the installation process. However, when additional controllers are later added to the system in a modified configuration, PCI bus renumbering does occur. The information that follows in this section explains these changes as they occur and how you can easily modify Windows NT with several Compaq and Windows NT utilities. 13UK-1200A-WWEN

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PCI Bus Numbering in a Microsoft Windows NT Environment
23
13UK-1200A-WWEN
Reviewing the Test 2 Configuration
In Test 2, as in Test 1, the PCI BIOS begins the discovery process by identifying buses on the
Primary PCI Bus, which is assigned bus 0. Slot 6 on the Tertiary Bus now contains a NC3131
Fast Ethernet NIC (a bridged controller), which increments the bus number assignment to bus 6.
The network controller in slot 5 is also assigned bus 5 as it was before.
At this point, Windows NT is not aware that the bus number assignments have changed. The
bindings for the network controller in slot 6 are no longer applicable and must be manually reset
for this controller to function in the configuration again. Refer to the “Compaq Network and
Teaming Configuration Utility” section in this document for instructions on how to reset the
bindings.
Comparison of Test 1 to Test 2 - Configuration A
When you reboot the server and run the System Configuration utility to view the hardware
configuration changes, it displays slot and bus number assignments. Test 2 data was recorded and
compared to Test 1.
A side-by-side comparison of the slot configurations and bus numbers of each device in Test 1 to
the slot configurations and bus numbers of each device in Test 2, illustrates what bus numbers
were changed after modifications took place.
Slot
Type Controller
Test 1
Test 2
Bus Assignment
Slot 1
Empty
N/A
Slot 2
Empty
N/A
Slot 3
Empty
N/A
Slot 4
Empty
N/A
Slot 5
NC3123 (non-bridged)
$
$
Bus 5 –
No Change
Slot 6
NC3131 (bridged)
$
Bus 6 –
New
Slot 7
Empty
N/A
Slot 8
Empty
N/A
Configuration B, ProLiant 8000
Configuration B included two installations tested on the ProLiant 8000. The test 1 server was set
up as an original Window NT server configuration.
All the controllers included in this
configuration were installed in the server before Windows NT was loaded on the system. Because
they were a part of the original configuration, Windows NT detected the network controllers
during the installation process. However, when additional controllers are later added to the
system in a modified configuration, PCI bus renumbering does occur. The information that
follows in this section explains these changes as they occur and how you can easily modify
Windows NT with several Compaq and Windows NT utilities.