HP ProLiant 2500 PCI Bus Balancing and Optimization on Compaq ProLiant Servers
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- HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 1
® ProLiant 5000 Server for Peak Performance, Fourth Edition, July 1997 - Doc ID 679A/0697. Implementing Online Storage Controller Recovery Option Under Windows NT®, July 1997 - Doc ID ECG066A/0797. Compaq Advanced Network Error Correction Support using PCI Hot Plug with Microsoft Windows NT®, August - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 2
or registered trademarks of their respective companies. Compaq, Contura, Deskpro, Fastart, Compaq Insight Manager, LTE, PageMarq, Systempro, Systempro/LT, ProLiant, TwinTray, ROMPaq, LicensePaq, QVision, SLT, ProLinea, SmartStart, NetFlex, DirectPlus, QuickFind, RemotePaq, BackPaq, TechPaq, SpeedPaq - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 3
Compaq ProLiant family of servers that embody the bridged PCI bus architecture. ECG073/0398 ... EXECUTIVE SUMMARY With the introduction of the Compaq ProLiant 5000 Server . The supporting facts presented . Host Bus 540 MB/s Processors HostBridge to-PCI Bridge Memory Slots 133 MB/s Secondary PCI - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 4
at: http://www.compaq.com/solutions/frontline/pciutils.html. TABLE 1: PCI BUS TO SLOT NUMBER ASSIGNMENTS Slot Bridged PCI Number Bus Systems Dual-Peer PCI Bus Systems ProLiant 3000/ ProLiant 6000/ ProLiant 6500 ProLiant 2500 ProLiant 1200 ProLiant 1600 ProLiant 5500 ProLiant 5000 ProLiant 7000 - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 5
before the initial system setup and configuration take place. For example, the Intel Pentium Pro processor is optimized for performance using PCI peripherals. The Compaq ProLiant servers that support dual-peer PCI bus architectures provide aggregate I/O throughput capability as high as 267 MB/s. The - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 6
ECG073/0398 WHITE PAPER (cont.) ... Example Configurations Table 2 explains where to place controllers to enable PCI bus balancing on Compaq ProLiant servers that contain the dual-peer bus architecture. For example, a system configuration might consist of one NIC and two drive array controllers ( - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 7
slot, if it were to fail replacing the controller would require shutting down the server. The active NIC (#3), on the other hand, is still available and in the failed NIC (#4) during non-peak hours, when access to the server is at a minimum. This configuration uses the minimum number of PCI hot - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 8
if a connection is lost or a controller fails. For more information, refer to the white paper "The Compaq Advanced Network Error Correction Support in a Microsoft Windows NT Server Environment." ... Configuration 3 When the configuration consists of an additional stand-alone device, for example - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 9
papers online at: http://www.compaq.com/support/techpubs/index.html. • Compaq Advanced Network Error Correction Support using PCI Hot Plug with BALANCING TOOLS Compaq offers a variety of helpful tools to assist in keeping the PCI busload balanced on Compaq servers. Some tools specifically help users - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 10
. The System Management Performance Monitor, specifically, adds several System Management Objects to the Windows NT Performance Monitor. These counters include items concerning the EISA Bus, PCI Bus, and Power Supply. These counters require Compaq Support Software Version 1.21A or later for - HP ProLiant 2500 | PCI Bus Balancing and Optimization on Compaq ProLiant Servers - Page 11
in the white paper Compaq Advanced Network Error Correction Support using PCI Hot Plug with Compaq's first server using PCI technology contained a single PCI bus. A short time later, Compaq introduced the dual-peer PCI bus architecture having two PCI buses independently linked to the host processor
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HITE
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APER
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ECG073/0398
[March 1998]
Prepared By
Windows NT
Integration Team
Compaq Computer
Corporation
C
ONTENTS
Executive Summary
3
PCI Architecture
3
PCI Load Balancing
5
Performance Optimization
Using PCI Bus Balancing
5
Bus Balancing Rules
5
Example Configurations
6
PCI Bus Loading with
PCI Hot Plug
7
PCI Bus
Balancing Tools
9
System Management
Performance Monitor
10
Balancing Bus Use
10
PCI Bus Loading with
Redundant Controllers
10
Online Storage Controller
Recovery Option
10
Compaq Advanced Network
Control Utility
10
Future PCI Bus Loading
and Technical Summary
11
PCI Bus Balancing and Optimization on
Compaq ProLiant Servers
With the introduction of dual-peer PCI (Peripheral Component Interconnect) bus
architecture, Compaq recommends balancing the load between the two PCI buses to
achieve optimal performance on the server.
This white paper identifies the importance of PCI Bus Balancing and provides technical
configurations for achieving high performance and availability on bridged PCI buses
and dual-peer PCI bus architectures.
Additional Resources include:
PCI Bus Numbering in a Microsoft Windows NT
Environment, First Edition,
February, 1998 – Doc ID ECG024/0298.
Configuring the Compaq
ProLiant 5000 Server for Peak Performance, Fourth Edition,
July 1997 – Doc ID 679A/0697.
Implementing Online Storage Controller Recovery Option Under Windows NT
, July
1997 - Doc ID ECG066A/0797
.
Compaq Advanced Network Error Correction Support using PCI Hot Plug with
Microsoft Windows NT
, August 1997 – Doc ID ECG057/0897.
Compaq Advanced Network Error Correction Support in a Microsoft
Windows NT
Server Environment, June 1996 – Part Number 353A/0696.
Advanced Network Fault Detection and Correction Feature for NetWare
, June 1996 –
Part Number 385A/0696.