Compaq ProLiant 8000 Technology Brief
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Compaq ProLiant 8000 Technology Brief

Compaq ProLiant 8000 Technology Brief

Compaq proliant 8000 server technology
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Download this manual See also: Feature Manual, Maintenance and Service Manual
June 2000
Compaq Computer
Corporation
ISSD Technology
Communications
C
O N T E N T S
Introduction ....................... 3
High-Performance
Technologies ..................... 3
ProLiant 8000 Architecture ...... 4
Pentium III Xeon
Processor Technology........... 10
High-Availability
Technologies ....................11
PCI Hot Plug Technology ...... 11
Redundant Array
Controller Technology ........... 12
Redundant Network Interface
Controller Technology ........... 12
Redundant Hot-Plug Fans ..... 13
Redundant Processor
Power Modules ..................... 15
Redundant Hot-Plug
Power Supplies .................... 15
Hot-Plug Hard Disk Drives..... 18
Storage
Technologies ....................18
Hard Drive Technology.......... 18
Array Controller Technology .. 18
Management
Technologies ....................19
Remote-Flash
Redundant ROM ................... 19
Auto-Default
ROM Configuration ............... 20
Integrated Management
Display................................. 21
Integrated Remote Console ... 21
Remote Insight
Board/PCI Option ................. 21
Serviceability
Features ............................22
Conclusion........................22
TC000603TB
T
ECHNOLOGY
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Compaq ProLiant 8000 Server Technology
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This technology brief describes the high-performance, high-availability, storage, and
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management technologies built into the Compaq ProLiant 8000 server. The high-
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performance technologies include a new 8-way system architecture driven by the
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Profusion chipset codeveloped by Compaq, Intel, and Corollary, as well as Intel's
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Pentium III Xeon processors. In addition, new disk drive technology and a new extended
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SCSI controller with redundancy capability allows the ProLiant 8000 server to deliver
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maximum highly available internal storage capacity.
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The high-availability technologies include redundant internal array controllers; PCI Hot
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Plug technology; redundant hot-plug power supplies, drives, and fans; and redundant
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processor power modules. The ProLiant 8000 design also contains easy-access
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components that reduce downtime for service or upgrades. Key management
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technologies, such as the Integrated Remote Console, Integrated Management Display,
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Remote-flash Redundant ROM, and auto-default ROM configuration, further enhance
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availability.
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The intended audience for this paper is engineers and system administrators familiar
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with existing Compaq technology and servers. For those less familiar with Compaq
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technology, please see the related technology briefs referenced in this document. For
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more information about the ProLiant 8000 server, see the complete list of features at
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http://www.compaq.com/products/servers/ProLiant8000/quickspecs.html.
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Please direct comments regarding this communication to the ISSD Technology Communications Group at this Internet
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address:
TechCom@compaq.com
1
B
RIEF

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Summary of Contents for Compaq ProLiant 8000

  • Page 1 Controller Technology ... 12 technology, please see the related technology briefs referenced in this document. For Redundant Network Interface more information about the ProLiant 8000 server, see the complete list of features at Controller Technology ... 12 http://www.compaq.com/products/servers/ProLiant8000/quickspecs.html. Redundant Hot-Plug Fans ..13 Redundant Processor Power Modules .....
  • Page 2 BUSINESS INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. The limited warranties for Compaq products are exclusively set forth in the documentation accompanying such products. Nothing herein should be construed as constituting a further or additional warranty.
  • Page 3 Compaq Remote-flash Redundant ROM, ROM – read only memory and redundant processor power modules (PPMs), keep the ProLiant 8000 server up and running in the most demanding 7x24 environments. The ProLiant 8000 server provides all of the high-availability and manageability features of the ProLiant 7000 server with added performance and scalability—all in a similar price class.
  • Page 4 (cont.) ProLiant 8000 Architecture The system architecture is the key to the high level of performance offered by the ProLiant 8000 server. Compaq worked closely with Intel and Corollary for three years to perfect the 8-way symmetric multiprocessing (SMP) architecture so that the processors, memory, and I/O subsystem work in harmony to deliver breakthrough levels of performance.
  • Page 5 ECHNOLOGY RIEF (cont.) Profusion Chipset At the heart of the 8-way architecture is the Profusion chipset. The chipset uses a five-point crossbar switch (Figure 2) to connect processor buses, memory ports, and the I/O bus. The crossbar switch contains static random access memory (SRAM) with ten ports—five read and five write—that appear as five bidirectional ports, one for each of the processor, memory, and I/O buses.
  • Page 6 Figure 3: ASIC partitioning in the Profusion chipset. Processor and I/O Buses The ProLiant 8000 server includes two 64-bit processor buses and a dedicated 64-bit I/O bus. All three are 100-MHz advanced Gunning transceiver logic plus (AGTL+) buses with a theoretical maximum throughput of 800 MB/s.
  • Page 7 I/O bus. The I/O filter enhances performance by reducing snoop traffic on the I/O bus. This I/O filter is designed to work with all three of the Compaq host-to-PCI bridges. When a processor requests a cache line with the intent to modify it, the MAC performs a lookup into the I/O filter to determine if that line resides in one of the caching bridges.
  • Page 8 Peer-to-peer transaction support 64-Bit, 66-MHz PCI Support Compaq licensed the host-to-PCI bridges to Intel, and they will ship with a Compaq logo on top in servers produced by other original equipment manufacturers. The bridges are compliant with the PCI 2.2 Specification and support 64-bit, 66-MHz PCI transactions.
  • Page 9 The host-to-PCI bridges include electronics to support PCI Hot Plug technology, 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;...
  • Page 10 ECHNOLOGY RIEF (cont.) Pentium III Xeon Processor Technology The Pentium III Xeon processor is based on the Pentium II Xeon processor cartridge form factor. The Pentium III Xeon processor provides a higher internal core frequency than the Pentium II Xeon processor and includes 70 new streaming instructions that permit more efficient use of memory above 4 GB.

  • Page 11: Pci Hot Plug Technology

    Hot expansion – adding a PCI adapter to an empty slot The ProLiant 8000 server supports all three hot-plug capabilities for all 64-bit and 32-bit PCI Hot Plug slots. These capabilities can be added incrementally, depending on the OS implementation.
  • Page 12 PCI Hot Plug Technology with Microsoft Windows Architecture, document number ECG071/0399 Redundant Array Controller Technology The ProLiant 8000 server supports up to two Compaq Smart Array 4250ES controllers in a redundant configuration. The Smart Array 4250ES controller is specially designed for use in the ProLiant 8000 server. See “Storage...

  • Page 13: Redundant Hot-Plug Fans

    Thumbscrew for removal Redundant fan unit Hot-Plug LEDs Primary fan unit Figure 5: Rear hot-plug fans for the processor and memory section of the ProLiant 8000 server. Redundant fan unit Primary fan unit Hot-Plug LEDs Latch for removal Figure 6: Front hot-plug fans for the processor and memory section of the ProLiant 8000 server.
  • Page 14 When the failed fan is replaced, redundancy is restored. Hot-Plug LEDs Figure 7: Hot-plug fans for the I/O section in the ProLiant 8000 server. The fan control logic operates independently from the system processor and OS. Regardless of which OS is running or its condition, the fan control logic and the server temperature monitoring circuitry work together to cool the server effectively.

  • Page 15: Redundant Hot-Plug Power Supplies

    Figure 8: Schematic diagram of fan control logic. Redundant Processor Power Modules Each processor in the ProLiant 8000 server has its own redundant PPM. An additional PPM is included in the server to power the system board. PPMs are also known as voltage regulator modules.
  • Page 16 Graceful shut down – A 10-second delay counter begins as a message warning of an imminent power-down goes to Compaq Insight Manager and the IMD. Because of the communication between the ACPI controller and the OS, the OS can delay the power down until all running applications have properly closed.
  • Page 17 When a power supply is hot swapped, the microcontroller governs the power-up and power-down sequences, enables the health drivers to calculate redundancy “on the fly,” and informs the health drivers of changes in load. Compaq hot-plug power supplies are readily identifiable by their port- colored bezel, as shown in Figure 11.

  • Page 18: Hot-Plug Hard Disk Drives

    Ultra SCSI channels, allowing a single controller to support all three internal hot-plug hard drive RAID – Redundant Array of cages in the new ProLiant 8000 server. Since all three drive cages run off the same RAID engine, Independent Disks all 21 internal hot-plug hard drives can be configured as one massive 382-GB array or multiple smaller arrays.

  • Page 19: Remote-Flash Redundant Rom

    Using the Compaq Remote ROM Flash Utility, administrators can flash the system ROMs for a wide range of Compaq servers, locally or across the network. The Remote ROM Flash Utility is a combination of components that allows administrators to upgrade the system ROMs on servers from a single point of execution.

  • Page 20: Auto-Default Rom Configuration

    ROM is launched, the user will see an error message identifying the faulty system ROM. Auto-Default ROM Configuration When a ProLiant 8000 server is first powered on, the system ROM detects the unconfigured state of the hardware and provides default configuration settings for most devices. By providing this initialization, the system can run Diagnostics and other software applications before running the normal SmartStart and System Configuration applications.

  • Page 21: Integrated Management Display

    Integrated Remote Console IRC consists of a Compaq designed ASIC and associated firmware. IRC allows out-of-band, or asynchronous, management capabilities such as remote console and remote reset. These capabilities are independent of the state of the network OS.

  • Page 22: Serviceability Features

    E R V I C E A B I L I T Y E A T U R E S By providing easy access to server components, the ProLiant 8000 server design further reduces the downtime associated with upgrades and field maintenance.

This manual is also suitable for:

303900-001 - proliant - 8000

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