Lenovo System x3950 X6 (6241)

The Lenovo System x3950 X6 server, machine type 6241, is an eight-socket 8U rack-mounted server that represents the sixth generation of the Enterprise X-Architecture. Now with Intel Xeon E7 v4 processors, the x3950 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 x3950 X6 packs numerous fault-tolerant and high-availability features into a high-density, 8U rack-optimized lid-less package that helps reduce the space that is needed to support massive network computing operations and simplify servicing. The x3950 X6 supports up to eight Intel Xeon E7 processors and up to 24 TB of memory.

Suggested use: mission-critical scalable databases, business analytics, virtualization, enterprise applications, and cloud applications.

Figure 1. Lenovo System x3950 X6

The x3950 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 x3950 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.

Built on decades of innovation, Lenovo introduces its sixth generation of Enterprise X-Architecture technology, X6 servers. Lenovo X6 servers are fast, agile, and resilient:

• Fast application performance means immediate access to actionable information.
• Agile system design helps to reduce acquisition costs and provide the ability to upgrade processor and memory technology at each refresh within the same chassis.
• Resilient platforms maximize application uptime and promote easy integration in virtual environments.

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.

Fast application performance

The server offers numerous features to boost performance:

• Based on the Intel Xeon E7 family of processors:
  • Models based on E7-8800 v4 processors
  • Supports up to eight E7 v4 processors with a total of 192 cores and 384 threads to maximize the concurrent running of multi-threaded applications.
  • Improves productivity by offering superior system performance with processors up to 24 cores, core frequencies up to 3.2 GHz core speeds, L3 cache of up to 60 MB, and three QPI interconnect links at up to 9.6 GTps.

• Supports DDR4 memory at speeds up to 1866 MHz, or DDR3 memory at speeds up to 1600 MHz
• Supports up to 192 DIMM sockets, with 24 DIMMs per processor.
• Intelligent and adaptive system performance with Intel Turbo Boost Technology 2.0 allows processor cores to run at maximum speeds during peak workloads by temporarily going beyond processor thermal design power (TDP).
• Intel Hyper-Threading Technology boosts performance for multi-threaded applications by enabling simultaneous multi-threading within each processor core, up to two threads per core.
• Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating system vendors to better use the hardware for virtualization workloads.
• Intel Advanced Vector Extensions (AVX) improves floating-point performance for compute-intensive technical and scientific applications.
• Supports a 12 Gbps SAS RAID portfolio.
• The usage of solid-state drives (SSDs) instead of, or along with, traditional spinning drives (HDDs) can improve I/O performance. An SSD can support up to 100 times more I/O operations per second (IOPS) than a typical HDD.
• Optional support for high-performance PCIe-attached NVMe Flash Storage solid-state drives (SSDs) can significantly improve I/O performance.
• PCI Express 3.0 I/O adapter slots that improve the theoretical maximum bandwidth by almost 100% (8 GTps per link using 128b/130b encoding) compared to the previous generation of PCI Express 2.0 (5 GTps per link using 8b/10b encoding).
• With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon processor. This integration helps reduce I/O latency and increase overall system performance.
• Support for up to four graphics processing units (GPUs) and co-processors to maximize computing power.
• Energy-efficient electronic components help lower operational costs, including highly efficient 900 W AC and 1400 W AC power supplies with 80 PLUS Platinum certification.
• Energy Star 2.0 compliant

Agile system design

The server provides many scalability and flexibility features:

• Innovative module "book" design for each of the three subsystems: Compute Books, Storage Book, and I/O Books. Front and rear access means that you can easily scale the system by adding components without removing the entire server from the rack.
• The modular book design also allows clients to create the configuration that fits their application and environment needs, which reduces acquisition costs while giving them the flexibility to grow and modify their configuration later.
• The book design also means that subsystem upgrades are simpler, quicker to perform, and have a lower impact on the rest of the server.
• Using 128 GB 3DS RDIMMs, the server supports up to 24 TB of memory.
• Up to 32x 1.8-inch SSD bays, or up to 16x 2.5-inch bays, provide a flexible and scalable all-in-one platform to meet your increasing demands.
• Offers up to 22 PCIe slots plus two dedicated Mezzanine LOM (ML2) adapter slots. Most slots are PCIe 3.0 to maximize I/O scalability.
• PCIe slots are implemented in I/O Books to maximize modularity. Choose from Half-length I/O Books or Full-length I/O Books, depending on the adapters that you need to deploy.
• Most components are common between the four-socket x3850 X6 and eight-socket x3950 X6, making for a simple upgrade path with minimal parts on the floor.

Resilient platform

The server provides many features to simplify serviceability and increase system uptime:

• Upward Integration Modules for standard hypervisors enable the creation and management of policies to maintain high availability of virtual machines and concurrent updating of the system firmware, with no impact on application performance or availability.
• Advanced Processor Recovery allows the system to automatically switch access and control of networking, management, and storage in the event of a processor 1 failure, providing higher availability and productivity.
• Advanced Page Retire proactively protects applications from corrupted pages in memory, which is crucial for scaling memory to terabytes.
• Redundant bit steering, memory mirroring, and memory rank sparing for redundancy in the event of a non-correctable memory failure.
• Intel Execute Disable Bit functionality can help prevent certain classes of malicious buffer overflow attacks when combined with a supported operating system.
• Intel Trusted Execution Technology provides enhanced security through hardware-based resistance to malicious software attacks, allowing an application to run in its own isolated space, which is protected from all other software running on a system.
• Redundant Intel Platform Controller Hub (PCH) connections to the processors allow the platform to maintain access to networking, storage, and server management during a processor failure.
• Hot-swap drives support RAID redundancy for data protection and greater system uptime.
• Hot-swap I/O Books enabling you to install or replace adapters while the server is still running.
• Tool-less lid-less design provides front and rear access for easy upgrades and serviceability. There is no need to pull the server out of the rack to access internal components.
• Hot-swap power supplies and hot-swap dual-motor redundant fans provide availability for mission-critical applications.
• An LCD diagnostics panel that is combined with individual light path diagnostic LEDs quickly lead the technician to failed (or failing) components, which simplifies servicing, speeds up problem resolution, and helps improve system availability.
• Proactive Platform Alerts (including PFA and SMART alerts): Processors, voltage regulators, memory, internal storage (SAS/SATA HDDs and SSDs, NVMe SSDs, flash storage adapters), fans, power supplies, RAID controllers, and server ambient and sub-component temperatures. Alerts can be surfaced through the system IMM to managers such as Lenovo XClarity Administrator, VMware vCenter, and Microsoft System Center. These proactive alerts let you take appropriate actions in advance of possible failure, thereby increasing server uptime and application availability.
• Built-in Integrated Management Module Version II (IMM2) continuously monitors system parameters, triggers alerts, and performs recovering actions in case of failures to minimize downtime.
• Includes two special Mezzanine LOM (ML2) adapter slots with support for adapters with either two 10 Gb ports or four 1 Gb ports. Supports direct connectivity to the IMM2 service processor for out-of-band systems management.
• Integrated industry-standard Unified Extensible Firmware Interface (UEFI) enables improved setup, configuration, and updates, and simplifies error handling.
• Integrated Trusted Platform Module (TPM) supporting TPM 2.0 and TPM 1.2 enables advanced cryptographic functionality, such as digital signatures and remote attestation.
• Industry-standard Advanced Encryption Standard (AES) NI support for faster and stronger encryption.
• Lenovo XClarity Administrator provides proactive systems management. It offers comprehensive systems management tools that help increase uptime, reduce costs, and improve productivity through advanced server management capabilities.
• Solid-state drives (SSDs) offer better reliability than traditional mechanical HDDs for greater uptime.
• Built-in diagnostic tests, using Dynamic Systems Analysis (DSA) Preboot, speed up troubleshooting tasks to reduce service time.
• Three-year customer-replaceable unit and onsite limited warranty, 9x5 next business day. Optional service upgrades are available.

The following figure shows the front of the x3950 X6 server.

Figure 2. Front view of the Lenovo System x3950 X6

The following figure shows the rear of the x3950 X6 server.

Figure 3. Rear view of the Lenovo System x3950 X6

The following table lists the standard specifications.

The server is shipped with the following items:

• Rail kit
• Cable management brackets
• 2.8 m (9.18 ft) C13-C14 power cord (one for each power supply)
• Documentation flyer and safety/warranty/installation information

This following table lists the standard models.

† x in the Machine Type Model (MTM) represents a region-specific letter (for example, the EMEA MTM is 6241-BAG, and the US MTM is 6241-BAU). Ask a Lenovo representative for specifics.
* Not available in North America
** Processor detail: Processor quantity and model, cores, core speed, L3 cache, and TDP.
‡ All models include one Intel I350-T4 ML2 Quad Port GbE Adapter (I350-AM4 based).
§ Models with 12 slots have two Primary I/O Books (each with four slots) and two Storage Books (each with two slots) standard.

For more information about the standard features of the server, see the Standard specification section.

The Lenovo System x3950 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 2 TB of memory and are upgradeable to support larger single node and scale-out cluster implementations.

The following table lists the Workload Optimized Solution models for SAP HANA.

Note: For CTO configurations of SAP HANA models, select base model 6241-AC4

* See the list of specific components below

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.

For more information about the standard features of the server, see the Standard specification section.

With the x3950 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.

Supported upgrades are:

• E7 v2 processors to E7 v4 processors (new DDR4 DIMMs required)
• E7 v3 processors with DDR3 to E7 v4 processors (new DDR4 DIMMs required)
• E7 v3 processors with DDR4 to E7 v4 processors (optionally keep existing memory)

Notes:

• Upgrades to E7 v4 processors are only supported with machine type 6241. If you want to upgrade an X6 server with machine type 3837, contact your local representative.
• eXFlash DIMMs (now withdrawn) are not supported with TruDDR4 memory; Only DDR3 memory is supported
• Intel Xeon E7 v4 processors require minimum firmware levels. Consult the documentation that is included with the Compute Books.
• Compute books with E7 v4 processors do not support DDR3 memory
• If you upgrade from E7 v3 processors with DDR4 to E7 v4 processors, you can transfer the 2133 MHz DDR4 memory DIMMs to the new compute books. If you also want to add additional memory to the E7 v4 compute book, it is supported to use either 2133 MHz or 2400 MHz DDR4 memory DIMMs. It is supported to mix 2133 MHz and 2400 MHz DIMMs in the same compute book.

The x3950 X6 supports up to eight 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:

• One processor
• A total of 24 DIMM slots, 12 on each side of the book
• Two hot-swap dual-motor fans that are mounted on the front of the book

The x3950 X6 supports four, six, or eight Compute Books. Other combinations are not supported.

Each Compute Book is installed in the front of the server, as shown in the following figure.

Figure 4. Compute Book

The following table shows the processor options, grouped as follows. Each option includes the processor installed in a Compute Book:

• E7-8800 v4 processors in Compute Books with TruDDR4 support

Note: Compute Books with E7-4800 processors are supported only in a four-socket x3850 X6 server and cannot be used in an x3950 X6 server.

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.

‡ The first feature code is for the first Compute Book. The second feature code is for all additional Compute Books
† The processors support two memory modes, RAS mode (also known as lockstep mode) and Performance mode (also known as independent mode). In Performance mode, the SMI2 link operates at twice the memory bus speed shown.

The x3950 X6 (6241) supports either DDR3 or TruDDR4 memory, depending on the Compute Books used in the server.

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.

From a service and support standpoint, Lenovo TruDDR4 and DDR3 memory automatically assumes the system warranty, and Lenovo provides service and support worldwide.

The x3950 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 x3950 X6, they operate at speeds up to 1866 MHz.

The x3950 X6 supports up to 192 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 lists the memory options that are available for x3950 X6.

The following rules apply when selecting the memory configuration:

• The server supports RDIMMs and LRDIMMs.
• DDR4 Compute Books support mixing 2133 MHz and 2400 MHz DDR4 memory. (Note: 2133 MHz DIMMs are now withdrawn)
• Mixing different types of memory (combinations of RDIMMs, LRDIMMs, and 3DS RDIMMs) is not supported.
• Mixing different generations of memory (DDR3 and TruDDR4) is not supported
• The maximum number of ranks per one memory channel is six with RDIMMs, 12 with LRDIMMs, or 24 with 3DS RDIMMs.
• In RAS (lockstep) mode, DIMMs must be installed in a pair.
• The maximum quantity of DIMMs that can be installed in the server depends on the number of processors, DIMM type, rank, and operating voltage, as shown in the "Max. qty supported" row in the following table.
• All DIMMs in the server operate at the same speed, which is determined as the lowest value of one of the following options:
  • Memory speed that is supported by the specific processor.
  • Lowest of maximum operating speeds for selected memory configuration that depends on rated speed, operating voltage, and quantity of DIMMs per channel, as shown under "Maximum operating speed" section in the following table.

The following table shows the characteristics of the supported DIMMs. Tables 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.

* Maximum quantity supported is shown for all processors that are installed
† This speed is above the Intel standard and is achieved only when Lenovo TruDDR4 memory is used

The following memory protection technologies are supported:

• ECC
• Chipkill (for x4-based memory DIMMs)
• Redundant bit steering (Double Device Data Correction)
• Memory mirroring
• Memory rank sparing

Chipkill and Redundant Bit Steering are supported in RAS mode. Chipkill is supported in Performance mode.

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 server supports 1.8-inch solid-state drives in the SSD units and 2.5-inch SSDs and HDDs. Drives are installed in the Storage Book. The x3950 X6 has two Storage Books.

Each Storage Book supports the following configurations:

• 4x 2.5-inch hot-swap drive bays
• 8x 2.5-inch hot-swap drive bays
• 4x 2.5-inch hot-swap drive bays + 8x 1.8-inch hot-swap SSD bays
• 8x 1.8-inch hot-swap SSD bays
• 16x 1.8-inch hot-swap SSD bays
• 4x 2.5-inch PCIe NVMe SSDs
• 2x 2.5-inch PCIe NVMe SSDs + 8x 1.8-inch HDD hot-swap drives
• 2x 2.5-inch PCIe NVMe SSDs + 4x 2.5-inch HDD hot-swap drives

The following figure shows these configurations.

Figure 5. Internal drive configurations

Table 7. Internal storage expansion options

* Withdrawn from marketing

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.

Figure 6. Storage Book

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 number of controllers required is dependent on the number of drives installed: 1 or 2 drives requires one controller, and 3 or 4 drives requires two controllers.

The following table lists the RAID controllers, HBAs, and additional hardware and feature upgrades that are used for internal disk storage. The adapters are installed in slots in the Storage Book.

† Only one FoD key is required if the x3950 X6 is configured as a single image 8-socket server. If you partition the server into two four-socket servers, then two FoD keys are required.
* These M5210 features upgrades require a cache memory upgrade (47C8656, 47C8660, or 47C8664).

The following table compares the features of the supported controllers.

For more information, see the list of Lenovo Press Product Guides in the RAID adapters category:
https://lenovopress.com/servers/options/raid

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.

Figure 7. NVMe PCIe SSD Extender Adapter

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.

The following tables list the hard disk drive and solid-state drive options for the internal disk storage of the server.

• Table 11: 2.5-inch hot-swap 12 Gb SAS HDDs
• Table 12: 2.5-inch hot-swap 6 Gb SAS/SATA HDDs
• Table 13: 2.5-inch hot-swap 12 Gb SAS SSDs
• Table 14: 2.5-inch hot-swap 6 Gb SAS/SATA SSDs
• Table 15: 2.5-inch NVMe SSDs

The server does not support internal tape drive options.

The server does not support an internal optical drive option, however, you can connect an external USB optical drive. See http://support.lenovo.com/en/documents/pd011281 for information about available external optical drives from Lenovo.

The server supports up to 22 PCIe slots plus two dedicated Mezzanine LOM slots (24 total) as follows:

• In each of the two Storage Books (standard in all models): Two PCIe 3.0 x8 slots for supported internal RAID controllers and SAS HBAs
• In each of the two Primary I/O Books (standard in all models):
  • Two PCIe 3.0 x16 slots (x16-wired), half length, full height, up to 75 W of power
  • One PCIe 3.0 x16 (x8-wired), half length, full height, up to 75 W of power
  • One mezzanine LOM 2 (ML2) slot for network adapters with the new ML2 form factor (PCIe 3.0 x8)

• Four optional I/O Books, each with three slots, all full height. Optional I/O Books are hot-swap capable.

The following figure shows the Primary I/O Book with the air baffle raised to show the internals.

Figure 8. Primary I/O Book

The adapters listed in the following table support hot-swap.

* Hot-swap is only supported when the adapter is in pNIC mode. Hot-swap is not supported in either vNIC mode (Virtual Fabric mode or Switch Independent mode).

Optional I/O books

The use of two Optional I/O Books requires six processors to be installed. The usage of all four Optional I/O Books requires all eight processors to be installed.

The following table shows the ordering information for the optional I/O Books.

Table 17. I/O Book options

* The Full-length I/O Book can be ordered only as an option. It is not available through CTO because the Full-length I/O Book cannot be shipped installed in the server

The following figure shows the two optional I/O Books: the Half-length I/O Book and the Full-length I/O Book.

Figure 9. Half-length I/O Book and the Full-length I/O Book

The following figure shows the Half-length I/O Book.

Figure 10. Half-length I/O Book

Each slot in the Half-length I/O Book and the Full-length I/O Book supplies up to 75 W of power.

The Full-length I/O Book also includes two auxiliary power connectors. With the usage 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:

• One 2x4 power connector, which supplies up to 150 W of additional power to the adapter
• One 2x3 power connector, which supplies up to 75 W of additional power to the adapter

The combined power consumption of all the adapters that are installed in the Full-length I/O Book cannot exceed 300 W.

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.

Figure 11. Full-length I/O Book

The Half-length I/O Book installs flush with the Primary I/O Book at the rear of the server. The Full-length I/O Book, when installed, adds a 99 mm (3.9 in.) mechanical extension to the base length dimension of the chassis.

The following figure shows a Full-length I/O Book and a Half-length I/O Book installed in the server.

Figure 12. Optional I/O Books that are installed (x3850 X6 shown)

The server supports ML2 adapters that are installed in the two ML2 slots, one in each Primary I/O Book. These ML2 slots support adapters with either two 10 Gb ports or four Gigabit ports and supports direct connectivity to the IMM2 service processor for out-of-band systems management.

As listed in Table 2, all standard models of the x3950 X6 include an Intel I350-T4 ML2 Quad Port GbE Adapter (I350-AM4 based).

The Intel I350-T4 ML2 Quad Port GbE Adapter has the following specifications:

• Quad-port 1 Gb Ethernet connectivity
• Intel I350-AM4 ASIC
• Four RJ45 ports for copper cables

For more information about this adapter, see the Lenovo Press Product Guide found at the following address:
http://lenovopress.com/tips1155

The following table lists the supported ML2 adapters. The following table lists the supported ML2 adapters. ML2 adapters are installed only in the ML2 slots (slot 10 and 42 as show in the Slot locations section).

* Not supported in servers with E7 v2 compute books

The server also supports various other Ethernet, InfiniBand and Omni-Path network adapters, as listed in the following table. The maximum quantity listed is for configurations with all processors and I/O books installed.

The maximum supported column also indicates which slots each adapter is supported in. For slot locations see the Slot locations section.

* Not supported in servers with E7 v2 compute books
† Only supported in servers with E7 v4 compute books

For more information, including supported transceivers and cables, see the list of Lenovo Press Product Guides in the Ethernet Adapters category and the InfiniBand & Omni-Path Adapters category.

The following table lists the SAS HBAs and RAID adapters that are supported by the x3850 X6. The maximum quantity listed is for configurations with all processors and I/O books installed. The maximum supported column also indicates which slots each adapter is supported in. For slot locations see the Slot locations section.

The following table compares the specifications of the external SAS HBAs and RAID adapters.

Cache upgrade required: The ServeRAID M5120 SAS/SATA Controller ships standard without a cache. One of the available cache upgrades (81Y4487, 81Y4559, or 47C8670) is required for the M5120 adapter operations, and it must be purchased together with the controller.

For more information about the adapters, see these Lenovo Press Product Guides:

• N2125: http://lenovopress.com/tips1062
• N2225 & N2226: http://lenovopress.com/tips1175
• ServeRAID M5120: http://lenovopress.com/tips0858
• ServeRAID M5225: http://lenovopress.com/tips1258

The following table lists the Fibre Channel HBAs supported by the x3950 X6. The maximum quantity listed is for configurations with all processors and I/O books installed. The maximum supported column also indicates which slots each adapter is supported in. For slot locations see the Slot locations section.

* Not supported in servers with E7 v2 compute books

For more information, see the list of Lenovo Press Product Guides in the Host bus adapters category:
https://lenovopress.com/servers/options/hba

All supported Flash Storage Adapters are now withdrawn from marketing.

The server supports the co-processors and graphics processing units (GPUs) that are listed in the following table. Each is installed in a Full-length I/O Book. No other adapter can be installed in the Full-length I/O Book. The Full-length I/O Book includes the necessary auxiliary power cables. The maximum supported column also indicates which slots each adapter is supported in. For slot locations see the Slot locations section.

Notes:

• These adapters are not available through CTO and cannot be shipped installed in the server because they are installed in the Full-length I/O Book, which extends beyond the rear of the chassis (see Figure 12 in the I/O expansion options). These adapters must be shipped separately from the server. Order the adapter and Full-length I/O Book as separate options.
• If an NVIDIA GPU is installed, the maximum system memory that can be installed is 1 TB, however, it is recommended you have less than 1 TB of memory installed. See https://support.lenovo.com/us/en/solutions/ht114952 for details.

* Not supported in servers with E7 v2 compute books
† Not available through CTO.

The x3950 X6 supports up to eight redundant power supplies. Standard models come with four power supplies (model dependent). The following table lists the power supplies.

Table 24. Power supplies

An AC power supply ships standard with one 2.8 m C13 - C14 power cord.

Configuration rules are as follows:

• Power supplies must be in quads for the x3950 X6
• It is not recommended you mix the two 1400 W options (44X4152 for low altitude and 44X4150 for high altitude) as you will nullify the high-altitude capabilities of 44X4150.
• You cannot mix the AC power supplies with the DC power supply
• Use the Power Configurator to determine exactly what power your server needs:
  https://support.lenovo.com/documents/LNVO-PWRCONF

The server supports VMware ESXi that is installed on a USB memory key. The key is installed in a USB socket that is on the primary I/O book inside the server. The following table lists the virtualization options.

Table 25. Virtualization options

* Not supported in servers with E7 v2 compute books 
† 2 hypervisor keys are supported only if the x3950 X6 is configured to be partitioned, where the two halves of the server operate as two independent four-socket servers. However, CTO orders can include only one hypervisor key.

The server contains Integrated Management Module 2.1 (IMM2), which provides advanced service-processor control, monitoring, and an alerting function. If an environmental condition exceeds a threshold or if a system component fails, the IMM2 lights LEDs to help you diagnose the problem, records the error in the event log, and alerts you to the problem. The IMM2 also provides a virtual presence capability for remote server management capabilities.

The IMM2 provides remote server management through industry-standard interfaces:

• Intelligent Platform Management Interface (IPMI) Version 2.0
• Simple Network Management Protocol (SNMP) Version 3
• Common Information Model (CIM)
• Web browser

The remote presence provides the following functions:

• Remotely viewing video with graphics resolutions up to 1600 x 1200 at 75 Hz with up to 23 bits per pixel colors, regardless of the system state
• Remotely accessing the server by using the keyboard and mouse from a remote client
• Mapping the CD or DVD drive, diskette drive, and USB flash drive on a remote client, and mapping ISO and diskette image files as virtual drives that are available for use by the server
• Uploading a diskette image to the IMM memory and mapping it to the server as a virtual drive

The blue-screen capture feature captures the video display contents before the IMM restarts the server when the IMM detects an operating-system hang condition. A system administrator can use the blue-screen capture feature to assist in determining the cause of the hang condition.

Because Lenovo XClarity Administrator does not require any agent software to be installed on the managed endpoints, there are no CPU cycles spent on agent execution, and no memory is used, which means that up to 1GB of RAM and 1 - 2% CPU usage is saved, compared to a typical managed system where an agent is required.

Lenovo XClarity Administrator is an optional software component for the x3950 X6. The software can be downloaded and used at no charge to discover and monitor the x3950 X6 and to manage firmware upgrades.

If software support is required for Lenovo XClarity Administrator, or premium features such as configuration management and operating system deployment are required, Lenovo XClarity Pro software subscription should be ordered. Lenovo XClarity Pro is licensed on a per managed system basis, that is, each managed Lenovo system requires a license.

The following table lists the Lenovo XClarity software license options.

For more information, refer to the Lenovo XClarity Administrator Product Guide:
http://lenovopress.com/tips1200

For more information about all the available Lenovo XClarity Integrators, see the Lenovo XClarity Administrator Product Guide: https://lenovopress.com/tips1200-lenovo-xclarity-administrator

All models of the x3950 X6 include a rail kit and cable management bracket kit for installation in a 19-inch rack cabinet. The contents of the kits are shown in the following figure.

Figure 14. x3950 X6 rail kit and cable management bracket kit

Operating system support is based on the compute books installed in the server.

For a complete list of supported, certified and tested operating systems, plus additional details and links to relevant web sites, see the Operating System Interoperability Guide: https://lenovopress.com/osig

The following operating systems are supported with E7 v4 compute books:

• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 R2
• Microsoft Windows Server 2016
• Microsoft Windows Server 2019
• Microsoft Windows Server, version 1709
• Red Hat Enterprise Linux 6.10 x64
• Red Hat Enterprise Linux 6.7 x64
• Red Hat Enterprise Linux 6.8 x64
• Red Hat Enterprise Linux 7.2
• Red Hat Enterprise Linux 7.3
• Red Hat Enterprise Linux 7.4
• Red Hat Enterprise Linux 7.5
• Red Hat Enterprise Linux 7.6
• Red Hat Enterprise Linux 7.7
• Red Hat Enterprise Linux 7.8
• Red Hat Enterprise Linux 7.9
• Red Hat Enterprise Linux 8.0
• Red Hat Enterprise Linux 8.1
• Red Hat Enterprise Linux 8.2
• Red Hat Enterprise Linux 8.3
• Red Hat Enterprise Linux 8.4
• Red Hat Enterprise Linux 8.5
• Red Hat Enterprise Linux 8.6
• Red Hat Enterprise Linux 8.7
• Red Hat Enterprise Linux 8.8
• SUSE Linux Enterprise Server 11 Xen x64 SP4
• SUSE Linux Enterprise Server 11 x64 SP4
• SUSE Linux Enterprise Server 12 SP1
• SUSE Linux Enterprise Server 12 SP2
• SUSE Linux Enterprise Server 12 SP3
• SUSE Linux Enterprise Server 12 SP4
• SUSE Linux Enterprise Server 12 SP5
• SUSE Linux Enterprise Server 12 Xen SP1
• SUSE Linux Enterprise Server 12 Xen SP2
• SUSE Linux Enterprise Server 12 Xen SP3
• SUSE Linux Enterprise Server 12 Xen SP4
• SUSE Linux Enterprise Server 12 Xen SP5
• SUSE Linux Enterprise Server 15
• SUSE Linux Enterprise Server 15 SP1
• SUSE Linux Enterprise Server 15 SP2
• SUSE Linux Enterprise Server 15 SP3
• SUSE Linux Enterprise Server 15 SP4
• SUSE Linux Enterprise Server 15 SP5
• SUSE Linux Enterprise Server 15 Xen
• SUSE Linux Enterprise Server 15 Xen SP1
• SUSE Linux Enterprise Server 15 Xen SP2
• SUSE Linux Enterprise Server 15 Xen SP3
• SUSE Linux Enterprise Server 15 Xen SP4
• SUSE Linux Enterprise Server 15 Xen SP5
• VMware ESXi 6.0 U2
• VMware ESXi 6.0 U3
• VMware ESXi 6.5
• VMware ESXi 6.5 U1
• VMware ESXi 6.5 U2
• VMware ESXi 6.5 U3
• VMware ESXi 6.7
• VMware ESXi 6.7 U1
• VMware ESXi 6.7 U2
• VMware ESXi 6.7 U3

The following operating systems are supported with E7 v3 compute books:

• Microsoft Windows Server 2008 R2 SP1
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 R2
• Microsoft Windows Server 2016
• Microsoft Windows Server, version 1709
• Red Hat Enterprise Linux 6.10 x64
• Red Hat Enterprise Linux 6.6 x64
• Red Hat Enterprise Linux 6.7 x64
• Red Hat Enterprise Linux 6.8 x64
• Red Hat Enterprise Linux 7.1
• Red Hat Enterprise Linux 7.2
• Red Hat Enterprise Linux 7.3
• Red Hat Enterprise Linux 7.4
• Red Hat Enterprise Linux 7.5
• Red Hat Enterprise Linux 7.6
• Red Hat Enterprise Linux 7.7
• Red Hat Enterprise Linux 7.8
• Red Hat Enterprise Linux 7.9
• SUSE Linux Enterprise Server 11 Xen x64 SP3
• SUSE Linux Enterprise Server 11 Xen x64 SP4
• SUSE Linux Enterprise Server 11 x64 SP3
• SUSE Linux Enterprise Server 11 x64 SP4
• SUSE Linux Enterprise Server 12
• SUSE Linux Enterprise Server 12 SP1
• SUSE Linux Enterprise Server 12 SP2
• SUSE Linux Enterprise Server 12 SP3
• SUSE Linux Enterprise Server 12 SP4
• SUSE Linux Enterprise Server 12 SP5
• SUSE Linux Enterprise Server 12 Xen
• SUSE Linux Enterprise Server 12 Xen SP1
• SUSE Linux Enterprise Server 12 Xen SP2
• SUSE Linux Enterprise Server 12 Xen SP3
• SUSE Linux Enterprise Server 12 Xen SP4
• SUSE Linux Enterprise Server 12 Xen SP5
• SUSE Linux Enterprise Server 15
• SUSE Linux Enterprise Server 15 SP1
• SUSE Linux Enterprise Server 15 SP2
• SUSE Linux Enterprise Server 15 SP3
• SUSE Linux Enterprise Server 15 SP4
• SUSE Linux Enterprise Server 15 SP5
• SUSE Linux Enterprise Server 15 Xen
• SUSE Linux Enterprise Server 15 Xen SP1
• SUSE Linux Enterprise Server 15 Xen SP2
• SUSE Linux Enterprise Server 15 Xen SP3
• SUSE Linux Enterprise Server 15 Xen SP4
• SUSE Linux Enterprise Server 15 Xen SP5
• VMware ESXi 5.5 U2
• VMware ESXi 5.5 U3
• VMware ESXi 6.0
• VMware ESXi 6.0 U1
• VMware ESXi 6.0 U2
• VMware ESXi 6.0 U3
• VMware ESXi 6.5
• VMware ESXi 6.5 U1
• VMware ESXi 6.5 U2
• VMware ESXi 6.5 U3

The following operating systems are supported with E7 v2 compute books:

• Microsoft Windows Server 2008 R2 SP1
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 R2
• Red Hat Enterprise Linux 6.10 x64
• Red Hat Enterprise Linux 6.5 x64
• Red Hat Enterprise Linux 6.6 x64
• Red Hat Enterprise Linux 6.7 x64
• Red Hat Enterprise Linux 6.8 x64
• Red Hat Enterprise Linux 7.0
• Red Hat Enterprise Linux 7.1
• Red Hat Enterprise Linux 7.2
• Red Hat Enterprise Linux 7.6
• Red Hat Enterprise Linux 7.7
• Red Hat Enterprise Linux 7.8
• Red Hat Enterprise Linux 7.9
• SUSE Linux Enterprise Server 11 Xen x64 SP3
• SUSE Linux Enterprise Server 11 Xen x64 SP4
• SUSE Linux Enterprise Server 11 x64 SP3
• SUSE Linux Enterprise Server 11 x64 SP4
• SUSE Linux Enterprise Server 12
• SUSE Linux Enterprise Server 12 SP1
• SUSE Linux Enterprise Server 12 SP2
• SUSE Linux Enterprise Server 12 SP3
• SUSE Linux Enterprise Server 12 SP4
• SUSE Linux Enterprise Server 12 Xen
• SUSE Linux Enterprise Server 12 Xen SP1
• SUSE Linux Enterprise Server 12 Xen SP2
• SUSE Linux Enterprise Server 12 Xen SP3
• SUSE Linux Enterprise Server 12 Xen SP4
• VMware ESXi 5.1 U2
• VMware ESXi 5.1 U3
• VMware ESXi 5.5
• VMware ESXi 5.5 U1
• VMware ESXi 5.5 U2
• VMware ESXi 5.5 U3
• VMware ESXi 6.0
• VMware ESXi 6.0 U1
• VMware ESXi 6.0 U2

Dimensions and weight:

• Height: 351 mm (13.7 in.)
• Width: 482 mm (19.0 in.)
• Depth: 804 mm (31.6 in)
• Depth with cable management brackets installed: 836 mm (32.9”)
• Depth with Full-length I/O Book installed: 921 mm (36.2 in)
• Weight:
  • Minimum configuration: 84.5 kg (186.3 lb)
  • Typical configuration: 88.2 kg (194.5 lb)
  • Maximum configuration: 110.0 kg (242.6 lb)

Supported environment:

• The server is designed to the ASHRAE Class A3 guidelines
• Air temperature:
  • Server on: 5 °C to 40 °C (41 °F to 104 °F); altitude: 0 - 3,050 m (10,000 ft).
  • Server off: 5 °C to 45 °C (41 °F to 113 °F); altitude: 0 - 3,050 m (10,000 ft).
  • Shipment: -40 °C to 60 °C (-40 °F to 140 °F)

• Humidity:
  • Server on: 8% - 85%, maximum dew point 24 °C
  • Server off: 8% - 85%, maximum dew point 27 °C

• Electrical:
  • Models with 1400 W AC power supplies:
    • 100 - 127 (nominal) V AC; 50 Hz or 60 Hz; 10 A (900 W DC output)
    • 200 - 240 (nominal) V AC; 50 Hz or 60 Hz; 8 A (1400 W DC output)
    • Input kilovolt-amperes (kVA) (approximately):
      • Minimum configuration: 0.16 kVA
      • Maximum configuration: 3.2 kVA
  • Models with 900 W AC power supplies:
    • 100 - 127 (nominal) V ac; 50 Hz or 60 Hz; 10.7 A
    • 200 - 240 (nominal) V ac; 50 Hz or 60 Hz; 5.3 A
    • Input kilovolt-amperes (kVA) (approximately):
      • Minimum configuration: 0.16 kVA
      • Maximum configuration: 2.0 kVA
  • Models with 750 W DC power supplies:
    • -40 to -75 (nominal) V DC
    • Input kilovolt-amperes (kVA) (approximately):
      • Minimum configuration: 0.16 kVA
      • Maximum configuration: 1.7 kVA

• BTU output:
  • Minimum configuration: 546 Btu/hr (160 watts)
  • Maximum configuration: 10,912 Btu/hr (3,200 watts)

• Noise level:
  • 6.6 bels (operating)
  • 6.4 bels (idle)

The System x3950 X6, machine type 6241 has a three-year warranty.

The standard warranty terms are customer-replaceable unit (CRU) and onsite (for field-replaceable units FRUs only) with standard call center support during normal business hours and 9x5 Next Business Day Parts Delivered.

Lenovo’s additional support services provide a sophisticated, unified support structure for your data center, with an experience consistently ranked number one in customer satisfaction worldwide. Available offerings include:

• Warranty Upgrade (Preconfigured Support)

  Services are available to meet the on-site response time targets that match the criticality of your systems.

  • 3, 4, or 5 years of service coverage
  • 1-year or 2-year post-warranty extensions
  • Foundation Service: 9x5 service coverage with next business day onsite response. YourDrive YourData is an optional extra (see below).
  • Essential Service: 24x7 service coverage with 4-hour onsite response or 24-hour committed repair (available only in select markets). Bundled with YourDrive YourData.
  • Advanced Service: 24x7 service coverage with 2-hour onsite response or 6-hour committed repair (available only in select markets). Bundled with YourDrive YourData.
• Managed Services

  Lenovo Managed Services provides continuous 24x7 remote monitoring (plus 24x7 call center availability) and proactive management of your data center using state-of-the-art tools, systems, and practices by a team of highly skilled and experienced Lenovo services professionals.

  Quarterly reviews check error logs, verify firmware & OS device driver levels, and software as needed. We’ll also maintain records of latest patches, critical updates, and firmware levels, to ensure you systems are providing business value through optimized performance.

• Technical Account Management (TAM)

  A Lenovo Technical Account Manager helps you optimize the operation of your data center based on a deep understanding of your business. You gain direct access to your Lenovo TAM, who serves as your single point of contact to expedite service requests, provide status updates, and furnish reports to track incidents over time. In addition, your TAM will help proactively make service recommendations and manage your service relationship with Lenovo to make certain your needs are met.

• Enterprise Server Software Support

  Enterprise Software Support is an additional support service providing customers with software support on Microsoft, Red Hat, SUSE, and VMware applications and systems. Around the clock availability for critical problems plus unlimited calls and incidents helps customers address challenges fast, without incremental costs. Support staff can answer troubleshooting and diagnostic questions, address product comparability and interoperability issues, isolate causes of problems, report defects to software vendors, and more.

• YourDrive YourData

  Lenovo’s YourDrive YourData is a multi-drive retention offering that ensures your data is always under your control, regardless of the number of drives that are installed in your Lenovo server. In the unlikely event of a drive failure, you retain possession of your drive while Lenovo replaces the failed drive part. Your data stays safely on your premises, in your hands. The YourDrive YourData service can be purchased in convenient bundles and is optional with Foundation Service. It is bundled with Essential Service and Advanced Service.

• Health Check

  Having a trusted partner who can perform regular and detailed health checks is central to maintaining efficiency and ensuring that your systems and business are always running at their best. Health Check supports Lenovo-branded server, storage, and networking devices, as well as select Lenovo-supported products from other vendors that are sold by Lenovo or a Lenovo-Authorized Reseller.

Examples of region-specific warranty terms are second or longer business day parts delivery or parts-only base warranty.

If warranty terms and conditions include onsite labor for repair or replacement of parts, Lenovo will dispatch a service technician to the customer site to perform the replacement. Onsite labor under base warranty is limited to labor for replacement of parts that have been determined to be field-replaceable units (FRUs). Parts that are determined to be customer-replaceable units (CRUs) do not include onsite labor under base warranty.

If warranty terms include parts-only base warranty, Lenovo is responsible for delivering only replacement parts that are under base warranty (including FRUs) that will be sent to a requested location for self-service. Parts-only service does not include a service technician being dispatched onsite. Parts must be changed at customer’s own cost and labor and defective parts must be returned following the instructions supplied with the spare parts.

Lenovo Services is a dedicated partner to your success. Our goal is to reduce your capital outlays, mitigate your IT risks, and accelerate your time to productivity.

Here’s a more in-depth look at what we can do for you:

• Asset Recovery Services

  Asset Recovery Services (ARS) helps customers recover the maximum value from their end-of-life equipment in a cost-effective and secure way. On top of simplifying the transition from old to new equipment, ARS mitigates environmental and data security risks associated with data center equipment disposal. Lenovo ARS is a cash-back solution for equipment based on its remaining market value, yielding maximum value from aging assets and lowering total cost of ownership for your customers. For more information, see the ARS page, https://lenovopress.com/lp1266-reduce-e-waste-and-grow-your-bottom-line-with-lenovo-ars.

• Assessment Services

  An Assessment helps solve your IT challenges through an onsite, multi-day session with a Lenovo technology expert. We perform a tools-based assessment which provides a comprehensive and thorough review of a company's environment and technology systems. In addition to the technology based functional requirements, the consultant also discusses and records the non-functional business requirements, challenges, and constraints. Assessments help organizations like yours, no matter how large or small, get a better return on your IT investment and overcome challenges in the ever-changing technology landscape.

• Design Services

  Professional Services consultants perform infrastructure design and implementation planning to support your strategy. The high-level architectures provided by the assessment service are turned into low level designs and wiring diagrams, which are reviewed and approved prior to implementation. The implementation plan will demonstrate an outcome-based proposal to provide business capabilities through infrastructure with a risk-mitigated project plan.

• Basic Hardware Installation

  Lenovo experts can seamlessly manage the physical installation of your server, storage, or networking hardware. Working at a time convenient for you (business hours or off shift), the technician will unpack and inspect the systems on your site, install options, mount in a rack cabinet, connect to power and network, check and update firmware to the latest levels, verify operation, and dispose of the packaging, allowing your team to focus on other priorities.

• Deployment Services

  When investing in new IT infrastructures, you need to ensure your business will see quick time to value with little to no disruption. Lenovo deployments are designed by development and engineering teams who know our Products & Solutions better than anyone else, and our technicians own the process from delivery to completion. Lenovo will conduct remote preparation and planning, configure & integrate systems, validate systems, verify and update appliance firmware, train on administrative tasks, and provide post-deployment documentation. Customer’s IT teams leverage our skills to enable IT staff to transform with higher level roles and tasks.

• Integration, Migration, and Expansion Services

  Move existing physical & virtual workloads easily, or determine technical requirements to support increased workloads while maximizing performance. Includes tuning, validation, and documenting ongoing run processes. Leverage migration assessment planning documents to perform necessary migrations.

The server conforms to the following regulations:

• Energy Star 2.0
• FCC - Verified to comply with Part 15 of the FCC Rules, Class A
• Canada ICES-003, issue 4, Class A
• UL/IEC 60950-1
• CSA C22.2 No. 60950-1
• NOM-019
• Argentina IEC60950-1
• Japan VCCI, Class A
• Australia/New Zealand AS/NZS CISPR 22, Class A
• IEC 60950-1(CB Certificate and CB Test Report)
• China CCC (GB4943), GB9254 Class A, GB17625.1
• Taiwan BSMI CNS13438, Class A; CNS14336-1
• Korea KN22, Class A; KN24
• Russia/GOST ME01, IEC-60950-1, GOST R 51318.22, GOST R 51318.24, GOST R 51317.3.2, and GOST R 51317.3.3
• IEC 60950-1 (CB Certificate and CB Test Report)
• CE Mark (EN55022 Class A, EN60950-1, EN55024, EN61000-3-2, and EN61000-3-3)
• CISPR 22, Class A
• TUV-GS (EN60950-1 /IEC60950-1, EK1-ITB2000)

The server supports attachment to external drive enclosures using a RAID controller with external ports or a SAS host bus adapter. Adapters supported by the server are listed in the SAS adapters for external storage section.

For details about supported drives and cables for the Lenovo Storage E1012 and E1024, see the Lenovo Press Product Guide:
http://lenovopress.com/lp0043

The following table lists the 12 Gbps SAS external drive enclosures offered by Lenovo that can be used with the server for storage expansion.

Note: Information provided in this section is for ordering reference purposes only. For the operating system and adapter support details, refer to the interoperability matrix for a particular storage enclosure that can be found on the Lenovo Data Center Support web site:
http://datacentersupport.lenovo.com

For details about supported drives, adapters, and cables, see the following Lenovo Press Product Guides:

• Lenovo Storage D1212 and D1224
  http://lenovopress.com/lp0512
• Lenovo Storage D3284
  http://lenovopress.com/lp0513

Lenovo offers the ThinkSystem DE Series and ThinkSystem DM Series external storage systems for high-performance storage. See the DE Series and DM Series product guides for specific controller models, expansion enclosures and configuration options:

• ThinkSystem DE Series Storage
  https://lenovopress.com/storage/thinksystem/de-series#rt=product-guide
• ThinkSystem DM Series Storage
  https://lenovopress.com/storage/thinksystem/dm-series#rt=product-guide
• ThinkSystem DG Series Storage
  https://lenovopress.com/storage/thinksystem/dg-series#rt=product-guide

The following table lists the external backup options that are offered by Lenovo.

For more information, see the list of Product Guides in the Backup units category:
https://lenovopress.com/servers/options/backup

Lenovo offers the ThinkSystem DB Series of Fibre Channel SAN switches for high-performance storage expansion. See the DB Series product guides for models and configuration options:

• ThinkSystem DB Series SAN Switches:
  https://lenovopress.com/storage/switches/rack#rt=product-guide

The following table lists the uninterruptible power supply (UPS) units that are offered by Lenovo.

† Only available in China and the Asia Pacific market.

For more information, see the list of Product Guides in the UPS category:
https://lenovopress.com/servers/options/ups

The following table lists the power distribution units (PDUs) that are offered by Lenovo.

For more information, see the Lenovo Press documents in the PDU category:
https://lenovopress.com/servers/options/pdu

The server supports the rack cabinets that are listed in the following table.

Table 33. Rack cabinets

* No support for Full-length I/O Books

For more information, see the list of Lenovo Press Product Guides in the Rack cabinets category:
https://lenovopress.com/servers/options/racks

The following table lists the supported KVM consoles, keyboards, and KVM switches.

For more information, see the list of Product Guides in the KVM Switches and Consoles category:
http://lenovopress.com/servers/options/kvm

Lenovo Financial Services reinforces Lenovo’s commitment to deliver pioneering products and services that are recognized for their quality, excellence, and trustworthiness. Lenovo Financial Services offers financing solutions and services that complement your technology solution anywhere in the world.

We are dedicated to delivering a positive finance experience for customers like you who want to maximize your purchase power by obtaining the technology you need today, protect against technology obsolescence, and preserve your capital for other uses.

We work with businesses, non-profit organizations, governments and educational institutions to finance their entire technology solution. We focus on making it easy to do business with us. Our highly experienced team of finance professionals operates in a work culture that emphasizes the importance of providing outstanding customer service. Our systems, processes and flexible policies support our goal of providing customers with a positive experience.

We finance your entire solution. Unlike others, we allow you to bundle everything you need from hardware and software to service contracts, installation costs, training fees, and sales tax. If you decide weeks or months later to add to your solution, we can consolidate everything into a single invoice.

Our Premier Client services provide large accounts with special handling services to ensure these complex transactions are serviced properly. As a premier client, you have a dedicated finance specialist who manages your account through its life, from first invoice through asset return or purchase. This specialist develops an in-depth understanding of your invoice and payment requirements. For you, this dedication provides a high-quality, easy, and positive financing experience.

For more information, see these resources:

• Lenovo System x3950 X6 product page
  https://www3.lenovo.com/us/en/data-center/servers/flex-blade-servers/compute-nodes/mission-critical/System-x3950-X6/p/WMD00000002
• Customer Implementations of the x3950 X6 - Case Studies and Videos
  https://lenovosuccess.com/search#term=&systems=System%2520x
  &system_models=x3950%2520X6
• ServerProven hardware compatibility page for the x3850 X6 and x3950 X6
  http://www.lenovo.com/us/en/serverproven/xseries/6241E7xxxxV4.shtml
• Lenovo System x3950 X6 Installation and Service Guide
  http://systemx.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.sysx.6241.doc%2Fprintable_doc.html
• Lenovo System x3950 X6 Rack Installation Instructions
  http://systemx.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.sysx.6241.doc%2Fprintable_doc.html
• xREF: System x Reference
  http://lenovopress.com/xref
• Support Portal for x3950 X6:
  http://support.lenovo.com/products/Servers/Lenovo-x86-servers/Lenovo-System-x3950-X6/6241
• IBM System Storage Interoperation Center
  http://www.ibm.com/systems/support/storage/ssic