The Lenovo System x3850 X6 server, machine type 6241, is a four-socket 4U rack-mounted server that represents the sixth generation of the Enterprise X-Architecture. Now with Intel Xeon E7 v4 processors, the x3850 X6 delivers fast application performance, is based on an agile system design, and is a resilient platform that is needed for mission-critical databases, enterprise applications, and virtualized environments.
This product guide provides essential pre-sales information to understand the x3850 X6 server, its key features and specifications, components and options, and configuration guidelines. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the x3850 X6 and consider its use in IT solutions.
The Lenovo System x3850 X6 server, machine type 6241, is a four-socket 4U rack-mounted server that represents the sixth generation of the Enterprise X-Architecture. With Intel Xeon E7 v4 processors, the x3850 X6 delivers fast application performance, is based on an agile system design, and is a resilient platform that is needed for mission-critical databases, enterprise applications, and virtualized environments.
The x3850 X6 packs numerous fault-tolerant and high-availability features into a high-density, 4U rack-optimized lid-less package that helps reduce the space that is needed to support massive network computing operations and simplify servicing. The x3850 X6 supports up to four Intel Xeon E7 high-performance processors and up to 12 TB of memory.
The x3850 X6 server employs a lid-less design where all serviceable components are front- and rear-accessible. In addition, each major subsystem is implemented as modular "book" design, such as the Compute Books and I/O Books. This configuration means that components are easy to upgrade and service, which translates to greater uptime of applications to your users. The x3850 X6 offers enterprise scalability and advanced RAS features to support the most demanding mission-critical applications that require 24x7 operations.
The increasing demand for cloud-computing and analytics workloads by enterprises to meet social, mobile, and Big Data requirements drives innovation to find new ways to build informational systems. Clients are looking for cost-optimized fit-for-purpose IT solutions that manage large amounts of data, easily scale performance, and provide enterprise class reliability.
Lenovo X6 servers continue to lead the way as the shift toward mission-critical scalable databases, business analytics, virtualization, enterprise applications, and cloud-computing applications accelerates.
One, two or four Intel Xeon E7-4800 v4 or E7-8800 v4 processors, each in a Compute Book. Processor options have between 4 and 24 cores with core frequencies up to 3.2 GHz. Three QPI links up to 9.6 GT/s each. Compute Books have TruDDR4 memory up to 1866 MHz, but cannot be mixed. Up to 60 MB L3 cache. Intel C602J chipset.
The Lenovo System x3850 X6 Workload Optimized Solutions for SAP HANA provide optimal solutions for SAP NetWeaver Business Warehouse, data mart, and SAP Business Suite, Powered by SAP HANA applications. Preconfigured workload optimized server models for SAP HANA applications are configured with up to 1 TB of memory and are upgradeable to support larger single node and scale-out cluster implementations.
Note: The operating system software is not included with the SAP HANA models. Operating system selection must be a separate line item included in order: SLES for SAP with standard or priority support. The SAP HANA Software is included, but the license is sold separately by SAP or an SAP business partner. VMware Enterprise Plus license sold separately. IBM Spectrum Scale (GPFS) is available from Lenovo separately.
With the x3850 X6, machine type 6241, Lenovo supports upgrading the server processors by simply by replacing the Compute Books. The process to upgrade is made very simple because of the innovative book design of the x3850 X6.
Once the need arises to upgrade the server to six or eight processors, simply purchase more Compute Books with the same processor model, plus additional power supplies (as determined by using the Power Configurator), I/O Books, adapters and drives as needed.
Engage a Lenovo service engineer to come onsite to perform the field upgrade by transferring all components to the new chassis. This method also requires the x3850 X6 compute books be the same E7-8800 series processors as ordered, however, in this scenario, the server maintain the original serial number.
The major parts of the 4U to 8U upgrade are the 8U chassis, the Storage Book and the Primary I/O Book. All the components in the package will be installed in the top portion of the chassis. The 4U system's components will be transferred to the bottom section of the chassis.
The x3850 X6 supports up to four Intel Xeon E7 v4 processors. Compute books with E7 v3 or E7 v2 processors are now withdrawn from marketing. Processors are installed in Compute Books, one processor in each Compute Book. The following figure shows the components of the Compute Book:
Each option includes the processor installed in a Compute Book. Compute Books with one of the E7-4800 family of processors are supported only in a four-socket x3850 X6 server and cannot be used in an x3950 X6 server. All Compute Books installed in a server must be identical.
The table also shows the maximum memory bus speed each processor supports plus which server models have each processor standard. If there is no corresponding where-used model for a particular processor, this processor is only available through CTO.
Lenovo TruDDR4 Memory uses the highest quality components that are sourced from Tier 1 DRAM suppliers and only memory that meets the strict requirements of Lenovo is selected. It is compatibility tested and tuned to maximize performance and reliability. TruDDR4 Memory has a unique signature that is programmed into the DIMM that enables System x servers to verify whether the memory that is installed is qualified or supported by Lenovo. Because TruDDR4 Memory is authenticated, certain extended memory performance features can be enabled to extend performance over industry standards.
Lenovo DDR3 memory is compatibility tested and tuned for optimal System x performance and throughput. Lenovo memory specifications are integrated into the light path diagnostics for immediate system performance feedback and optimum system uptime.
The x3850 X6 supports TruDDR4 memory operating at speeds up to 1866 MHz and DDR3 memory at speeds up to 1600 MHz. Note that even though supported TruDDR4 DIMMs are rated at 2400 MHz or 2133 MHz, when used in the x3850 X6, they operate at speeds up to 1866 MHz.
The x3850 X6 supports up to 96 DIMMs when all processors are installed, 24 DIMMs per processor. Each processor has four memory channels that are implemented using Scalable Memory Interface generation 2 (SMI2) chips, and the server implements three DIMMs per channel. The processor and the corresponding memory DIMM slots are on the Compute Book.
The following table shows the characteristics of the supported DIMMs. Table cells that are highlighted with a gray background indicate that the server supports higher memory frequencies or larger memory capacity (or both) than the Intel processor specification defines.
Memory speed: In performance mode, memory channels operate independently, and the SMI2 link operates at twice the DDR3 speed. In RAS mode, two channels operate synchronously, and the SMI2 link operates at the DDR3 speed.
If memory mirroring is used, DIMMs must be installed in pairs for Performance mode (minimum of one pair per each processor) and quads for RAS mode. DIMMs in the pair/quad must be identical in type and size.
If memory rank sparing is used, then a minimum of two single-rank or dual-rank DIMMs must be installed per populated channel (the DIMMs do not need being identical). In rank sparing mode, one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank varies depending on the DIMMs that are installed.
The x3850 X6 server supports 1.8-inch solid-state drives and 2.5-inch SSDs and HDDs. Drives are installed in the Storage Book. The x3850 X6 has one Storage Book. The Storage Book supports the following configurations:
The backplanes are connected to one or two RAID controllers or HBAs depending on the number and type of backplane that is installed. The adapters are installed in PCIe slots in the Storage Book, as shown in the following figure.
The following table shows the backplanes that are required per Storage Book and the number of controllers that are required. Note that the table shows the exact number of controllers supported for each drive/backplane configuration, no more, no fewer.
The NVMe PCIe SSD Extender Adapter is a PCIe adapter that simply routes the PCIe 3.0 x8 signal from the slot in the Storage Book, splits the signal to two x4 links, and routes those via cables to the drive backplane. The extender adapter is shown in the following figure.
One adapter is required for every two drives installed in the Storage Book. Since there are only two PCIe slots in the Compute Book, only two adapters can be installed and therefore only four NVMe drives can be installed in a Storage Book.
In order for an I/O Book to be hot-swappable, all adapters that are installed in the book must support hot-swap and the operating system must also support hot-swap. These operating systems support hot-swap:
The Full-length I/O Book also includes two auxiliary power connectors. With the use of these connectors and the supplied power cords, the I/O book supports one double-wide adapter up to 300 W. The auxiliary power connectors are as follows:
Note: The 2x3 connector is intended to be used only when one adapter is installed in the first x16 slot (the up-most slot in the following figure), either requiring 225 W or 300 W of power. The location of the 2x3 connector prevents an adapter from being installed in the other x16 slot.
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