HP ProLiant 8500 ProLiant 8500 Server Technology
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- HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 1
chipset codeveloped by Compaq, Intel, and Corollary, as well as Intel's Pentium III Xeon processors. In addition, new disk drive technology and a new integrated array controller optimize the ProLiant 8500 server's internal storage for operating system and boot support while allowing maximum - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 2
trademark and Xeon is a trademark of Intel Corporation. Other product names mentioned herein may be trademarks and/or registered trademarks of their respective companies. ©2000 Compaq Computer Corporation. All rights reserved. Printed in the U.S.A. Compaq ProLiant 8500 Server Technology Second - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 3
modular design and System Interconnect Status Indicators improve serviceability and further reduce downtime associated with upgrades and field maintenance. This technology brief explains the features of the ProLiant 8500 server and describes the management and storage technologies that enhance - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 4
own memory controller • Dedicated 100-MHz I/O bus • Support for up to eight Pentium III Xeon processors • Support for up to 16 GB of two-way, cache-line interleaved SDRAM • Dual cache accelerators • I/O filter • Three Compaq designed host-to-PCI bridges Figure 1: Block diagram of the ProLiant 8500 - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 5
later. The Profusion crossbar switch consists of two physical chips-the memory address controller (MAC) and the data interface buffer (DIB). This functional partitioning of the application-specific integrated circuit (ASIC), as shown in Figure 3, improves system performance. For every transaction - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 6
ProLiant 8500 server to support up to eight Pentium III Xeon processors. The Profusion chipset joins the two processor buses, the I/O bus, and the two memory ports. The otherwise independent processor and I/O buses are joined by a logical connection that is made only when required to transfer data - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 7
support will not be available for an extended period. Also, in discussions with customers, Compaq learned that very few server implementations are fully configured with memory. With this in mind, Compaq used the internal server space to provide additional drive capacity in the ProLiant 8500 server - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 8
slots provides adequate I/O bandwidth for the most demanding applications. The Compaq 8-way architecture will support up to four Compaq host-to-PCI bridges. However, by incorporating only three host-to-PCI bridges, the ProLiant 8500 server has room on the I/O board to deliver an additional PCI slot - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 9
, which was pioneered by Compaq. PCI Hot Plug technology provides the ability to remove, replace, upgrade, and add PCI adapters without shutting down the server. Any PCI adapter can be placed in a PCI Hot Plug slot; however, PCI Hot Plug device drivers and OS support are required to enable PCI - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 10
difference between the Pentium II Xeon and Pentium III Xeon processors is the migration to the Katmai core logic. The Katmai core logic adds the following enhancements to the existing Intel core: • Memory streaming • Concurrent Single Instruction Multiple Data - Floating Point (SIMD-FP) • Katmai - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 11
for the Pentium III Xeon processor cartridge. This top-mounted position and the direction of the cooling fins are advantageous in two important ways. First, this design cools efficiently regardless of the direction of airflow (vertical or horizontal). Therefore, the ProLiant 8500 server can use the - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 12
added, or upgraded. PCI Hot Plug Technology The Compaq ProLiant 8500 server incorporates industry-standard PCI Hot Plug technology. This technology, pioneered by Compaq, adds hot-plug capabilities to existing PCI adapters for increased system availability and serviceability. Compaq led the industry - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 13
service and the administrator can greatly reduce planned and unplanned downtime. The ProLiant 8500 server supports a Compaq upgradeable with a daughter card to an additional two ports of 100BaseTX Ethernet, a single port of 100 BaseFX, or single-port Gigabit Ethernet SX or LX Fiber support - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 14
in the ProLiant 8500 server has its own redundant PPM. PPMs are also known as voltage regulator modules. An additional PPM is included in the server to power the system board. The PPMs deliver the precise voltage required by the processors. Compaq PPMs are programmable and support all current - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 15
TC000604TB TECHNOLOGY BRIEF (cont.) ... Redundant Hot-Plug Power Supplies The ProLiant 8500 server uses one of the newest Compaq technologies to reduce downtime: intelligent, redundant, hot-plug power supplies. The server supports two dual-rated 1150-watt/500-watt power supplies with new handles - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 16
in Figure 10, the server power switch connects to the as a message warning of an imminent power-down goes to Compaq Insight Manager and the IMD. Because of the communication between the feature is supported under Microsoft Windows NT and Novell NetWare. SCO is planning to implement support for the - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 17
health drivers of changes in load. Compaq hot-plug power supplies are readily identifiable by their portcolored bezel, as shown in Figure 11. Port-colored bezel Figure 11: Front view of hot-plug power supply with port-colored bezel. Hot-Plug Hard Disk Drives The ProLiant 8500 server supports four - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 18
The Compaq ProLiant 8500 server is equipped with an Integrated Smart Array Controller. The integrated controller, also known as RAID on a chip, or ROC, is an embedded hardware-based RAID solution that enhances system reliability and improves host processor utilization. It is ideal for data center - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 19
data on the drives. MANAGEMENT TECHNOLOGIES Fault-tolerant, redundant features are only part of what makes Compaq servers highly available. Compaq offers a range of hardware- and software-based server management tools that can be used to reduce downtime and increase productivity. The ProLiant 8500 - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 20
to a specific environment. • System ROM Flash Service. The System ROM Flash Service allows the user interface to perform essential functionality on remote servers for the ROM upgrade process, including remote system shutdown, mounting, and unmounting the system partition. • Compaq System - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 21
runtime, new events are stored in the nonvolatile RAM and the IMD SRAM. If the IMD unit is removed and replaced, all key event and system information is still available. Integrated Remote Console IRC consists of a Compaq designed ASIC and associated firmware. IRC allows out-of-band, or asynchronous - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 22
the white paper Compaq Remote Insight Board/PCI: Hardware and Software Architecture, document number ECG072/0798. SERVICEABILITY FEATURES The ProLiant 8500 server defines a new level of serviceability with a unique modular design that includes five components: the processor/memory module, the media - HP ProLiant 8500 | ProLiant 8500 Server Technology - Page 23
causing the problem. System Interconnect Status Indicators Figure 15: System Interconnect Status Indicators in the ProLiant 8500 server. CONCLUSION The Compaq ProLiant 8500 server offers customers a high-performance, highly scalable solution for their data center needs. The server also provides
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T
ECHNOLOGY
B
RIEF
1
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June 2000
Compaq Computer
Corporation
ISSD Technology
Communications
C
ONTENTS
Introduction
........................
3
High-Performance
Technologies
......................
3
ProLiant
8500 Architecture
.......
4
Pentium III Xeon
Processor Technology
............
10
High-Availability
Technologies
....................
12
PCI Hot Plug Technology
.......
12
Redundant Network Interface
Controller Technology
............
13
Redundant Hot-Plug Fans
......
13
Redundant Processor
Power Modules
......................
14
Redundant Hot-Plug
Power Supplies
.....................
15
Hot-Plug Hard Disk Drives
......
17
Auto Processor
Bus Recovery
........................
17
Storage
Technologies
....................
17
Hard Drive Technology
...........
17
Integrated Array
Controller Technology
............
18
Management
Technologies
....................
19
Remote-Flash
Redundant ROM
....................
20
Auto-Default ROM
Configuration
.........................
20
Integrated Management
Display
..................................
21
Integrated Remote Console
....
21
Remote Insight
Board/PCI Option
..................
21
Serviceability
Features
............................
22
Conclusion
........................
23
Compaq ProLiant
8500 Server Technology
This technology brief describes the high-performance, high-availability, storage, and
management technologies built into the
Compaq ProLiant
8500 server.
The high-
performance technologies include a new 8-way system architecture driven by the
Profusion chipset codeveloped by Compaq, Intel, and Corollary, as well as Intel’s
Pentium III Xeon processors.
In addition, new disk drive technology and a new
integrated array controller optimize the
ProLiant
8500 server’s internal storage for
operating system and boot support while allowing maximum external storage capacity.
The high-availability technologies include PCI Hot Plug technology; redundant hot-plug
power supplies, drives, and fans; redundant processor power modules; and auto
processor bus recovery.
The
ProLiant
8500 server uses a highly modular design that
allows easy access to components, thus reducing downtime for service and upgrades.
The
ProLiant
8500 server also incorporates key management technologies, such as the
Integrated Remote Console, Integrated Management Display, Remote-flash Redundant
ROM, and auto-default ROM configuration, that further enhance availability.
The intended audience for this paper is engineers and system administrators familiar
with existing Compaq technology and servers.
For those less familiar with Compaq
technology, please see the related technology briefs referenced in this document.
For
more information about the
ProLiant
8500 server, see the complete list of features at
.
Please direct comments regarding this communication to the ISSD Technology Communications Group at this Internet
address: