Windows Nt Bus Numbering; How Windows Nt Sees It - HP NetServer AA 4000 Reference Manual

Windows NT Bus Numbering

How Windows NT sees it...

Network Server Division
Network services, protocols, and bindings will have to be configured
as part of the software installation. Working with multiple network
cards and configuring software parameters can sometimes be
confusing when mapping the physical slots to what the operating
system displays. It is imperative that the relationship between
physical slots and Windows NT slot numbering is known. Incorrect
bindings and protocols on the network cards can cause problems for
disk mirroring and client/server access.
One strategy of making sure the correct bindings go with the right
card in a particular physical slot is to only install and configure one
network card at a time. This may work with a simple cluster
configuration, but it is not practical in this environment.
Understanding the relationship of physical cards to software settings
is preferred to maintain availability of the system when performing
configurations, upgrades, or maintenance.
In general, Windows NT will number the PCI slots in the order they
are detected. NT will detect PCI slots in the order of the PCI bus
detection and also assign slot numbers to detected PCI bridge chips.
As noted in the slide above, the NT detection of the PCI slots in the
NetServer LH 3 and 4 starts with Bus 0 Slot 8 (physical) and assigns
it Bus 0 slot 1 (software). As it makes its way to a new bus, the first
slot goes to the bridge chip and then the PCI slots. For example, Slot
5 (physical) in the LH 3 and 4 is assigned Bus 1 slot 3 in Windows
NT.
NOTE
When in doubt of which slot a card is located in, refer to the
information printed directly on the I/O board instead of the
external case numbering.
Ch 4: Networking Explaineds
4-3