Hitachi 1000 manual SMP Capabilities

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ECC — The ECC can correct an error in consecutive four bits in any four DIMM set (i.e., a fault in one DRAM device). This function is equivalent to technology generally referred to as Chipkill and allows the contents of memory to be reconstructed even if one chip completely fails. The concept is similar to the way RAID protects content on disk drives.

Memory device replacing function — The NDC and MC have a function to replace a faulty DRAM device with a normal spare one assisted by the System Abstraction Layer (SAL) firmware. This keeps the ECC function (S2EC-D2ED) operating. It can replace up to two DRAM devices in any one set of four DIMMs.

Memory hierarchy table (size, bandwidth/latency)

L1 cache

L2 cache

L3 cache

On board memory

Off board memory

Interleaved vs. non-interleaved memory configuration

ccNUMA (cache coherent Non-uniform memory access) description

SMP Capabilities

While dual processors systems are now common place, increasing the number of processors/sockets beyond two poses many challenges in computer design, particularly in the memory system. As processors are added to a system the amount of contention for memory access quickly increases to the point where the intended throughput improvement of more processors is significantly diminished. The processors spend more time waiting for data to be supplied from memory than performing useful computing tasks. Conventional uniform memory systems are not capable of scaling to larger numbers of processors due to memory bus contention. Traditional large SMP systems introduce cross bar switches in order to overcome this problem. However, this approach adds to the memory hierarchy, system complexity, and physical size of the system. SMP systems typically do not possess the advantages of blade systems, e.g., compact packaging and flexibility.

Leveraging their extensive mainframe design experience, Hitachi employs a number of advanced design techniques to create a blade-based SMP system, allowing the BladeSymphony 1000 to scale up to an eight socket, 16 core system with as much as 256 GB of memory. The heart of the design is the Hitachi custom designed Node Controller, which effectively breaks a large system into smaller, more flexible nodes or server blades in blade format. These server blades can act as complete, independent systems or up to four server blades can be connected to form a single, efficient multi-processor system, as illustrated in Figure 6.

14 BladeSymphony 1000 Architecture White Paper

www.hitachi.com

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Contents BladeSymphony 1000 Architecture Table of Contents Introducing BladeSymphony IntroductionExecutive Summary Enterprise-Class Capabilities BladeSymphony 1000 front viewData Center Applications System Architecture Overview Front Intel Itanium Server Blade features Intel Itanium Server BladeTwo ports per partition SpecificationsBackplane Node link for Three interconnect ports Interface Fast Ethernet Two100Base/10Base ports LAN manage MentIntel Itanium Processor 9100 Series FW ROM AtmelCache Hyper-Threading TechnologyIntel VT Virtualization Technology Demand Based SwitchingHitachi Node Controller Bus throughput from the Hitachi Node ControllerBaseboard Management Controller Memory SystemSMP Capabilities Hitachi Node Controller connects multiple server blades SMP Configuration Options Numa ArchitectureFull interleave mode and non-interleave mode Intel Itanium I/O Expansion Module L3 Cache Copy TagEBS Chassis Intel Xeon Server Blade Intel Xeon Server Blade componentsIntel Xeon 5200 Dual Core Processors Microsoft Windows Server 2003 SP2, Enterprise x64 EditionIntel Xeon 5400 Quad Core Processors FB-DIMM AdvantagesOnline Spare Memory Online spare memory supported configurationsAdvanced ECC Memory Mirroring Memory mirroringOn-Module Storage PCI-X I/O Module Sub SystemModules PCIe I/O Module Embedded Fibre Channel Switch ModulePCI-X I/O Module connector types PCIe I/O Module Combo CardFiber channel switch close-up Total 8 modules mountable Embedded Fibre Channel Switch Module components FCSW, Ipfc RFC, FCAL2, FcphFC-HBA + Gigabit Ethernet Combo Card LANManagement Software Hitachi FC Controller FC-HBA functionsEmbedded Gigabit Ethernet Switch Scsi Hard Drive Modules Connection configuration for HDD Modules Chassis, Power, and Cooling Chassis specificationsRedundant Power Modules Module ConnectionsRedundant Cooling Fan Modules Top view and cooling fan modules numbersReliability features Reliability and Serviceability FeaturesReliability Features Serviceability Features Switch & Management ModuleSwitch & Management Module components NV SramBase Management Controller BMC Console Functions OS ConsoleSVP Console Remote ConsoleOperating System Support Management SoftwareBladeSymphony Management Suite +1 or N+M Cold Standby Fail-over Operations ManagementDeployment Manager Rack Management Remote ManagementNetwork Management Asset ManagementHigh CPU Performance and Features VirtageHigh I/O Performance Dedicated ModeShared Mode Integrated System Management for Virtual Machines Fiber Channel VirtualizationShared/Virtual NIC Functions Summary For More InformationSierra Point Parkway