Compaq ProLiant 1850R PCI Bus Numbering in a Microsoft Windows NT Environment - Page 1
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Integration Note December 2000 13UK-1200A-WWEN Prepared by OS Integration Engineering Compaq Computer Corporation Contents Executive Overview 3 PCI Bus Architecture Terminology 4 PCI Hot Plug Terminology..........5 PCI System Overview 5 PCI Architecture and Bridged Controllers 6 PCI BIOS 8 PCI Bus Numbering 8 PCI BIOS Discovery 8 Configuration Changes 11 Windows NT and PCI Bus Numbering 11 PCI Bus Numbering and Network Controllers 11 Disk Renumbering 12 Hardware, Software, and Configuration Tools 13 Compaq Servers and Option Hardware 13 Planning a PCI System Configuration 17 Before Modifying an Existing System 18 Planning the New Configuration 18 Step-By-Step Review 19 PCI Test Configurations with ProLiant Servers 19 Configuration A, ProLiant ML530 20 Configuration B, ProLiant 8000 23 Configuration C, ProLiant DL580 29 Compaq Support Software and Utilities 36 Additional Troubleshooting Tips 39 Summary 40 Appendices A-D 41 PCI Bus Numbering in a Microsoft Windows NT Environment Abstract: Computing environments change rapidly to support business requirements. Typical network PCI-based servers contain a large number of expansion slots on multiple buses to allow for system growth. This means that multiple network and disk controllers of the same type may be installed in one server, with the intent that each installed controller supports a separate unique function. This can make it difficult to understand the physical and logical implications of PCI bus numbering. This document provides information to help systems engineering professionals understand how Microsoft Windows NT handles PCI bus numbering when controllers are physically added, moved, or removed from a server configuration. This document also includes ideas and suggestions that can help systems professionals avoid network downtime due to configuration changes. IMPORTANT: During the development of Microsoft Windows 2000, Compaq and Microsoft worked closely together effectively implementing Windows 2000 on Compaq hardware. Through this partnership, device detection improved, eliminating PCI bus numbering issues in the Windows 2000 environment. Windows 2000 checks and resets registry settings automatically, unlike its predecessor that does not reset the registry settings after discovering unbound devices. The following documents were either used as references to produce this white paper or are mentioned as recommended related reading material: • PCI System Architecture, Third Edition, MindShare, Inc. Tom Shanley and Don Anderson, November, 1995. • PCI Bus Balancing and Optimization on Compaq ProLiant Servers, March, 1998 - Doc ID ECG073/0398. • Where Do I Plug the Cable? Solving the Logical-Physical Slot Numbering Problem, December 1996 - Doc ID 209A/1296. • Deploying PCI Hot Plug on Compaq Servers in a Microsoft Windows NT Environment, July 1997 - Doc ID 064A/0797. Help us improve our technical communication. Let us know what you think about the technical information in this document. Your feedback is valuable and will help us structure future communications. Please send your comments to: [email protected]