Technology and architecture of HP ProLiant AMD-based 100 - series G6 (Generation 6) servers

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Technology and architecture of HP ProLiant AMD-

based 100–series G6 (Generation 6) servers

Technology brief

Abstract.............................................................................................................................................. 2

Introduction......................................................................................................................................... 2

Processor technology............................................................................................................................ 2

Direct Connect architecture 2.0 ......................................................................................................... 2

HyperTransport technology ............................................................................................................... 3

HT Assist......................................................................................................................................... 4

Memory technologies ........................................................................................................................... 4

Double data rate memory ................................................................................................................. 5

Determining memory bus speed ......................................................................................................... 5

Memory management technologies .................................................................................................... 5

Memory bank interleaving............................................................................................................. 5

Memory channel interleaving......................................................................................................... 6

Memory node interleaving............................................................................................................. 6

8X error correction ........................................................................................................................... 6

I/O technologies ................................................................................................................................. 6

PCI Express technology..................................................................................................................... 7

HP Smart Array and SAS/SATA technology ........................................................................................ 7

SAS-2 standard............................................................................................................................ 8

Battery backed write cache ........................................................................................................... 8

Zero Memory RAID....................................................................................................................... 8

HP Smart Array controller compatibility........................................................................................... 9

Smart Array Advanced Pack.............................................................................................................. 9

Power and thermal technologies .......................................................................................................... 10

Efficient power delivery................................................................................................................... 10

Industry standard power supply.................................................................................................... 10

Thermal sensors and fan control....................................................................................................... 10

PowerNow! technology .................................................................................................................. 10

Server management ........................................................................................................................... 11

Remote management ...................................................................................................................... 11

HP Lights-Out 100i ..................................................................................................................... 11

LO100i shared and dedicated networks ....................................................................................... 12

IPMI 2.0 and DCMI 1.0.................................................................................................................. 13

OS support ....................................................................................................................................... 13

Summary .......................................................................................................................................... 14

For more information.......................................................................................................................... 15

Call to action .................................................................................................................................... 15

Summary of content (15 pages)

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Technology and architecture of HP ProLiant AMDbased 100–series G6 (Generation 6) servers Technology brief Abstract.............................................................................................................................................. 2 Introduction......................................................................................................................................... 2 Processor technology.................................................................................
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Abstract This technology brief describes the key technologies implemented in HP ProLiant 100-series G6 servers based on AMD™ processors. As of this writing, the AMD-based 100-series G6 server platforms are limited to the ProLiant DL165. A link to the QuickSpecs for this server is listed in the “For more information” section at the end of this technology brief.
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Figure 1. Block diagram of Direct Connect 2.0 architecture in the AMD 2400-series processors HyperTransport technology HyperTransport is a point-to-point interconnect with two unidirectional links (see Figure 2) that is designed to connect the processors directly and to connect each processor to its dedicated memory banks, as well as to other I/O chipsets.
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Figure 2. The HyperTransport interconnect HyperTransport can be configured through the Basic Input/Output System (BIOS) and BIOS Setup Utility (BSU). In the BSU Advanced Options menu, administrators can use the HyperTransport Selection option to choose HT1 or HT3. HT1 is active by default. HyperTransport is designed to provide a direct, scalable bandwidth interconnect between the processor, the I/O subsystem, and the chipset.
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• Write bursting to minimize read/write transitions for greater throughput • Optimized DRAM paging algorithm for greater throughput • DRAM prefetcher to intelligently predict and retrieve needed data from main memory • Core prefetchers that fetch data directly to L1 cache to decrease latency and reduce L2 bandwidth Double data rate memory HP ProLiant G6 100-series servers with AMD processors support PC2 Registered double data rate (DDR-2) DIMMs.
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However, memory bank interleaving does increase the probability that more DIMMs need to be kept in an active state (requiring more power) since the memory controller alternates between memory banks and therefore between DIMMs.
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PCI Express technology The PCI Express (PCIe) serial interface provides point-to-point connections between the chipset I/O controller hub and I/O devices. Each PCIe serial link consists of one or more dual-simplex lanes. Each lane contains a send pair and a receive pair to transmit data at the signaling rate in both directions simultaneously. ProLiant 100-series servers with AMD processors support PCIe 1.0 slots, which have a signaling rate of 2.5 Gb/s per direction per lane.
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• SAS wide port operations — Wide ports contain four single lane (1x) SAS connectors and the cabling has all four lanes bundled together. SAS wide ports allow balanced SAS traffic distribution across the links for enhanced performance. In addition, wide ports provide redundancy by tolerating up to three physical link failures while maintaining the ability to communicate with the disk drives.
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supports limited configurations. ZMR supports up to eight drives in Zero Memory Mode, or seven drives and one tape drive. ZMR does not include caching; however, all systems can be upgraded to a BBWC memory module that can significantly increase performance. ZMR is supported on present generation Smart Array controllers for internal, direct connections only. This includes the Smart Array P212 supported in the ProLiant DL165 G6 server. Modular Smart Array (MSA) products are not supported in ZMR mode.
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Power and thermal technologies HP engineers have developed a robust set of power and thermal technologies and components to manage power within ProLiant 100-series G6 servers.
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Server management ProLiant ML and DL 100-series G6 server users each have different computing requirements. Consequently, the way in which customers manage and control servers can differ. With these requirements in mind, this section examines the following management topics: • HP ProLiant Onboard Administrator Powered by Lights-Out 100i remote management and control (LO100i) • Intelligent Platform Management Interface (IPMI) 2.0 and Data Center Management Interface (DCMI) 1.
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LO100i Advanced Pack contains all the features of LO100i Standard. Additional LO100i Advanced Pack features can be obtained through an optional license key. Table 3 shows the differences in functionality between LO100i Standard, which comes with all 100-series G6 servers, and LO100i Advanced Pack. Table 3.
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Figure 4 shows the two implementations available for the DL and SL100-series G6 servers. Figure 4. LO100i sideband architecture for DL and SL100-series G6 servers System Network Shared NIC DL100 G6 Configuration The system NIC ports are shared with LO100i for management.
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Summary The development and engineering innovations associated with the HP ProLiant AMD100-series G6 servers help administrators lower power costs and increase business performance. These innovations include the AMD Opteron 2400-series processor technologies, improved thermal control, common power supplies, DDR-2 memory, and PCIe 2.0-compliant modular Smart Array controllers.
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For more information For additional information, refer to the resources listed below. Resource description Web address SAS and SATA technology www.hp.com/go/serial Smart Array Advance Pack http://h18004.www1.hp.com/products/servers/proliantstorage/arr aycontrollers/smartarray-advanced/index.html Smart Array controllers www.hp.com/products/smartarray HP Network Adapters for ProLiant DL and ML Servers http://h20195.www2.hp.com/V2/GetPDF.aspx/4AA06064ENW.