Lenovo ThinkServer RD550 (E5-2600 v4)

The Lenovo ThinkServer RD550 is an enterprise class, dual-socket server that features Intel Xeon processor E5-2600 v4 product family and supports up to 1.5 TB of DDR4 memory, 22 cores, and 44 threads per socket.

With the capability to support mix and match internal hard disk drive (HDD) and solid-state drive (SSD) storage with up to 12x 2.5-inch front drive bays, up to five I/O slots with up to 140 GbE networking capability, up to 8 hot-swap dual rotor fans, hot-swap redundant power supplies, and a dedicated Gigabit Ethernet out-of-band management port, the ThinkServer RD550 provides leading features and capabilities in a dense 1U rack-mount design.

The ThinkServer RD550 blends outstanding flexibility and expandability and is the ideal choice for server consolidation/virtualization, heavy web traffic workloads, data analytics, and line-of-business applications.

The ThinkServer RD550 server is shown in the following figure.

Figure 1. Lenovo ThinkServer RD550

Lenovo’s distinctive AnyFabric design provides a wide choice of powerful 1 Gb and 10 Gb Ethernet adapters, 10 Gb converged network adapters (CNAs), and 8 Gb and 16 Gb Fibre Channel host bus adapters (HBAs) to address growing network and storage connectivity bandwidth requirements without the use of a PCIe slot.

This storage-rich server provides up to 92.1 TB of storage capacity and features an industry-unique Lenovo AnyBay design that allows multiple storage types in the same drive bay. M.2 and SD card options are available, which enable flexible boot drive choices.

The RD550 provides Lenovo AnyRAID technology, a midplane RAID adapter design that connects directly to the drive backplane without using a PCIe slot. A comprehensive portfolio of AnyRAID controllers is available for various applications, which include software RAID and RAID on Chip-based controllers.

The RD550 delivers impressive compute power per watt, featuring 80 PLUS Titanium and Platinum redundant power supplies. This server is designed to meet ASHRAE A4 standards, which enable customers to lower energy costs.

The RD550 provides outstanding memory performance by supporting two DIMMs per channel at speeds up to 12% faster than the Intel specification, while still maintaining world-class reliability.

With an efficient cooling design, the RD550 can run continuously at 45 °C with no impact on reliability.

The ThinkServer RD550 offers performance and capacity of a 2U system in a 1U rack form factor. Energy-smart design with powerful high-performance processors, a large capacity of high-performing DDR4 memory, and flexible storage and networking configurations are ideal for business-critical applications and cloud deployments.

Scalability and performance

The ThinkServer RD550 offers numerous features to boost performance, improve scalability, and reduce costs:

• Improves productivity by offering superior system performance with the Intel Xeon processor E5-2600 v4 product family with up to 22-core processors, up to 55 MB of L3 cache, and up to 9.6 GT/s QPI interconnect links.
  • Support for up to two processors, 44 cores, and 88 threads allows to maximize the concurrent execution of multithreaded applications.
  • Intelligent and adaptive system performance with energy efficient Intel Turbo Boost Technology allows CPU 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 multithreaded applications by enabling simultaneous multithreading 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 utilize the hardware for virtualization workloads.
• Up to 2400 MHz memory speeds with two DIMMs per channel running at 2400 MHz to help maximize system performance.
• Up to 1.5 TB of memory capacity with 64 GB Load Reduced DIMMs (LRDIMMs).
• 12 Gbps serial-attached SCSI (SAS) internal storage connectivity doubles the data transfer rate compared to 6 Gb SAS solutions to maximize performance of storage I/O-intensive applications.
• Flexible and scalable internal storage configurations that feature an industry-unique Lenovo AnyBay™ design, which allows a choice of SAS, SATA or PCIe interface drives in the same bay, provide up to 92.1 TB of storage capacity in a 1U rack form factor.
• The use of SSDs instead of or along with traditional spinning HDDs can significantly improve I/O performance. An SSD can support a significantly higher number of I/O operations per second (IOPS) than a typical HDD.
• The RD550 server offers up to three PCI Express (PCIe) 3.0 I/O expansion slots and up to two AnyFabric slots for a total of five I/O slots in a dense 1U rack form factor.
• Leveraging the unique Lenovo AnyFabric design, the RD550 can house up to eight 10 Gb Ethernet ports without taking up any of the available PCIe slots.
• The RD550 provides Lenovo AnyRAID® technology, which is a midplane RAID adapter that connects directly to the drive backplane without using a PCIe slot.
• With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon processor E5-2600 v4 product family. This helps to dramatically reduce I/O latency and increase overall system performance.

The ThinkServer RD550 provides many features to simplify serviceability and increase system uptime:

• Tool-less cover removal provides easy access to upgrades and serviceable parts, such as processors, memory DIMMs, and adapter cards.
• The RD550 server offers memory mirroring and memory rank sparing for redundancy in the event of a non-correctable memory failure.
• The RD550 server offers hot-swap drives supporting RAID redundancy for data protection and greater system uptime.
• The RD550 server offers redundant hot-swap power supplies and hot-swap redundant fans to provide availability for business-critical applications.
• SSDs offer significantly better reliability than traditional mechanical HDDs for greater uptime.
• Built-in ThinkServer System Manager (TSM) continuously monitors system parameters, triggers alerts, and performs recovery actions in case of failure, to minimize downtime.
• Embedded Lenovo Diagnostics software speeds up troubleshooting to reduce service time.

Manageability and security

Powerful systems management features simplify local and remote management of the ThinkServer RD550 and deliver enterprise-class data protection:

• The server includes ThinkServer System Manager to monitor server availability and perform remote management.
• An integrated industry-standard Unified Extensible Firmware Interface (UEFI) enables improved setup, configuration, and updates, and simplifies error handling.
• Lenovo XClarity Administrator offers comprehensive hardware management tools that help to increase uptime, reduce costs and improve productivity through advanced server management capabilities.
• An optional Trusted Platform Module (TPM) supports the enablement of advanced cryptographic functionality, such as digital signatures and Windows BitLocker encryption.
• Embedded ThinkServer Deployment Manager (TDM) provides a complete set of provisioning capabilities from a single interface, which automates many of the tasks that are associated with server provisioning.

Energy efficiency

The ThinkServer RD550 offers the following energy-efficiency features to save energy, reduce operational costs, increase energy availability, and contribute to a green environment:

• Energy-efficient planar components help lower operational costs.
• High-efficiency power supplies with 80 PLUS Platinum and Titanium certifications.
• Intel Intelligent Power Capability powers individual processor elements on and off as needed, to reduce power draw.
• Low-voltage Intel Xeon processors draw less energy to satisfy the demands of power and thermally constrained data centers and telecommunication environments.
• Low-voltage 1.2 V DDR4 memory DIMMs offer energy savings compared to 1.35 V and 1.5 V DDR3 DIMMs.
• System power profiles can be configured in UEFI to optimize usage for maximum performance or energy efficiency.
• Lenovo XClarity Energy Manager provide advanced data center power notification, analysis, and policy-based management to help achieve lower heat output and reduced cooling needs.

The following figure shows the front of the RD550 3.5-inch drive bay models.

Figure 2. RD550 3.5-inch drive bay model front view

The following table lists the ThinkServer RD550 system specifications.

The RD550 server package includes the following items:

• Rail kit (select models)
• Cable management arm (select models)
• Rack installation instructions (select models)
• One or two rack power cords or line cords (select models)
• Read Me First printed publication
• Documentation DVD containing the ThinkServer RD550 User's Guide

ThinkServer RD550 relationship models are region-specific; that is, each region may define their own server models, and not all server models are available in every region.

For a list of the RD550 relationship models (Machine Types 70R4, 70R6, and 70S7), contact a Lenovo or Lenovo Business Partner representative in your region.

Product availability: RD550 server models are available in Asia Pacific (Australia and New Zealand), China, and EMEA (Europe, Middle East and Africa). EMEA models are available via Special Bid only.

ThinkServer RD550 TopSeller models are region-specific; that is, each region may define their own server models, and not all server models are available in every region.

For a list of the RD550 TopSeller models (Machine Types 70R3, 70R5, and 70S6), contact a Lenovo or Lenovo Business Partner representative in your region.

Product availability: RD550 server models are available in Asia Pacific (Australia and New Zealand), China, and EMEA (Europe, Middle East and Africa). EMEA models are available via Special Bid only.

The ThinkServer RD550 supports up to two processors of the Intel Xeon processor E5-2600 v4 product family. The following table lists the specifications of the processors for the RD550 server.

For RD550 server models that come standard with one processor, the second processor can be ordered, if required (see the following table for ordering information). The second processor must be of the same model as the first processor. The second processor option includes two system fans.

The RD550 server supports up to 12 DIMMs when one processor is installed and up to 24 DIMMs when two processors are installed. Each processor has four memory channels and there are three DIMMs per channel.  Lenovo DDR4 memory is compatibility tested and tuned for optimal ThinkServer performance and throughput. From a service and support standpoint, Lenovo memory automatically assumes the system warranty, and Lenovo provides service and support worldwide.

ThinkServer engineering tested and validated system designs that support memory speeds beyond Intel’s original plan, which provides benefits for workloads that require memory speed and density. Lenovo ThinkServer memory is fully supported up to the rated speeds that are shown in the following table.

The following rules apply when the memory configuration is selected:

• The server supports RDIMMs and LRDIMMs.
• Mixing different types of memory (RDIMMs and LRDIMMs) is not supported.
• DIMM capacities and rank can be mixed.
• All DIMMs in the server operate at the same speed, which is determined as the lowest value of:
  • Memory speed that is supported by the specific processor.
  • Memory speed for selected quantity of DIMMs per channel.

The following memory protection technologies are supported:

• ECC
• Lockstep (SDDC x4/x8)
• Memory mirroring
• Memory sparing
• Patrol scrubbing
• Demand scrubbing

If lockstep or memory mirroring is used, RDIMMs must be installed in pairs (a minimum of one pair per each processor), and both RDIMMs in a pair must be identical in type, size, and rank.

If memory sparing is used, one rank of a DIMM in each populated channel is reserved as spare memory; therefore, single-rank DIMMs cannot be used. DIMMs in a pair must be identical in type, size, and rank.

Lockstep, memory mirroring, and memory sparing modes are mutually exclusive. Only one operational memory mode can be enabled on the server, and it is a system-wide setting.

The following table lists available memory options for the RD550 server.

* The maximum quantity shown is with one processor / two processors.

The RD550 server supports the following internal storage configurations:

• Server models without any drive bays that can be upgraded to 4x 3.5-inch SAS/SATA hot-swap drive bays
• Server models with 4x 3.5-inch SAS/SATA hot-swap drive bays + optical drive bay that can be expanded with 2x 2.5-inch SATA hot-swap rear drive bays
• Server models with 8x 2.5-inch SAS/SATA hot-swap drive bays that support PCIe RAID or AnyRAID controller
• Server models with 12x 2.5-inch SAS/SATA hot-swap drive bays; two of these SAS/SATA drive bays can be converted to 2x 2.5" AnyBay drive bays.

In addition, the RD550 server models can be upgraded with 2x SD card internal slots, or 2x M.2 SSD internal slots, or both. The SD card slots are connected to the Intel Platform Controller Hub (PCH) via USB; therefore, they do not require a RAID controller. The M.2 SSD slots require a supported RAID controller (for details, see Controllers for internal storage).

Note: M.2 SSD slots and 2x 2.5-inch rear drive bays are mutually exclusive, that is, either M.2 SSD slots or 2x 2.5-inch rear drive bays can be selected in the configuration, but not both.

The following table shows the internal storage options available for the RD550 server.

For additional configuration guidelines, refer to Controllers for internal storage.

The following table lists the RAID controllers and the additional options used for the internal storage of the RD550 server. AnyRAID controllers are connected directly to the drive backplane, without the use of a PCIe slot. PCIe RAID controllers are supported in the PCIe slot 1. The PCIe interposer that is included in the RD550 AnyBay Enablement Kit (4XF0G88927) is supported in the PCIe slot 1.

* Onboard hardware-assist, software RAID controller (Embedded MegaRAID). 
** Included in the RD550 AnyBay Enablement Kit (4XF0G88927).

The RD550 server supports the internal drive options that are listed in the following tables.

The RD550 server models with 3.5-inch drives support the optical drive options listed in the following table. Server models with 2.5-inch drive bays do not support an internal optical drive; a supported external optical drive listed in the following table can be used instead.

The Slim SATA DVD-RW Optical Disk Drive and the USB DVD Burner support the following types of media: CD-R, CD-ROM, CD-RW, DVD-R, DVD-R (dual-layer recording), DVD-RW, DVD+R, DVD+R (dual-layer recording), and DVD+RW.

The Slim SATA DVD-ROM Optical Disk Drive supports the following types of media: CD-R, CD-ROM, DVD-R, DVD-R (dual-layer recording), DVD+R, DVD+R (dual-layer recording).

The RD550 server supports up to two AnyFabric slots and up to three PCIe slots with riser cards that are installed into two riser sockets on the system planar (one riser socket supports installation of one riser card).

The RD550 server supports AnyFabric slots for integrated NIC solution. The integrated NIC solution supports AnyFabric adapters with two or four 10 GbE ports or four Gigabit Ethernet ports and supports shared AnyFabric port for direct connectivity to the TSM service processor for systems management.

The following table lists the supported network adapter options.

#  The maximum quantity listed is for 2.5-inch drive bay configurations with two processors. For more information about the maximum adapter quantity supported for other configurations, see I/O expansion.
* Requires a supported optical transceiver (see Optical modules in the table).
^ Transceivers and cables are available only from Mellanox.
** Includes two 10Gb SR SFP+ transceivers.
*** The maximum number of optical modules that are supported per adapter equals the quantity of the adapter ports.

The following table lists SAS RAID controllers and HBAs for external storage attachments that are supported by the RD550 server.

The following table summarizes features of supported external drive controllers.

* In addition to eight external ports, the ThinkServer 8885e adapter has eight internal ports.

The following table lists Fibre Channel host bus adapters (HBAs) supported by the RD550 server. The maximum quantity listed is for 2.5-inch drive bay configurations with two processors. For more information about the maximum adapter quantity supported for other configurations, see I/O expansion.

The RD550 server supports the Flash storage adapters listed in the following table. The maximum quantity listed is for 2.5-inch drive bay configurations with two processors. For more information about the maximum adapter quantity supported for other configurations, see the I/O expansion section.

The RD550 server offers an optional hardware security module - Trusted Platform Module (TPM), and an optional chassis intrusion. These components are listed in the following table.

* Comes with select relationship and TopSeller models; configurable for custom models (SBB0E69082).

The RD550 server supports up to two redundant power supplies that are listed in the following table.

The following power supply rules apply:

• A minimum of one power supply and a maximum of two power supplies are needed per system.
• If two power supplies are installed, the power supplies must be identical.

Important: It is highly recommended to validate system configuration for specific power requirements by using the latest version of the ThinkServer Power Planner, which is available at this website:
http://support.lenovo.com/us/en/downloads/ds101155

Completing this validation ensures that the correct power supply is chosen for optimal performance.

The RD550 models come with one or two line cords or one or two rack power cables. Other line cords and rack power cables that are listed in the following table can be ordered, if needed.

The RD550 supports the following operating systems:

• Microsoft
  • Windows Server 2012 Foundation, Essentials, Standard, Datacenter, Hyper-V
  • Windows Storage Server 2012 Standard
  • Windows Server 2012 R2 Foundation, Essentials, Standard, Datacenter, Hyper-V
  • Windows Storage Server 2012 R2 Standard
  • Windows Server 2016 Essentials, Standard, Datacenter, Hyper-V
  • Windows Storage Server 2016 Standard, Workgroup
• SUSE
  • SUSE Linux Enterprise Server 11 for x86 SP4
  • SUSE Linux Enterprise Server 11 for AMD64/EM64T SP4
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server 12 SP2
• Red Hat
  • Red Hat Enterprise Linux Server 6.7 (x86 and x64)
  • Red Hat Enterprise Linux Server 6.8 (x86 and x64)
  • Red Hat Enterprise Linux Server 7.2
  • Red Hat Enterprise Linux Server 7.3
• VMware
  • VMware ESXi 5.5 Update 3
  • VMware ESXi 6.0 Update 1
  • VMware ESXi 6.0 Update 2
  • VMware ESXi 6.0 Update 3
  • VMware ESXi 6.5
• Citrix
  • XenServer 6.5.1

Important:

• SD cards support installation and booting of the VMware ESXi hypervisor only; other operating systems and hypervisors cannot be installed on an SD card.
• VMware ESXi and other hypervisor support requires a RAID 510i/720i/720ix adapter. The onboard RAID 110i controller is not supported by VMware ESXi and other hypervisors.

For the latest information about the specific versions and service levels that are supported and any other prerequisites, see the Operating System Interoperability Guide: http://lenovopress.com/redposig.

The RD550 server supports the following systems management tools:

• Lenovo ThinkServer System Manager
• Lenovo Software Tools
• Lenovo XClarity Administrator
• Lenovo XClarity Energy Manager

Lenovo ThinkServer System Manager

The RD550 server contains ThinkServer System Manager (TSM), 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 TSM lights LEDs to help you diagnose the problem, records the error in the event log, and alerts you to the problem. Optionally, the TSM also provides a virtual presence capability for remote storage server management capabilities.

The TSM provides remote server management through the following industry-standard interfaces:

• Intelligent Platform Management Interface (IPMI) Version 2.0
• Simple Network Management Protocol (SNMP) Version 3
• Data Center Management Interface (DCMI) Version 1.0
• Web browser

The optional TSM Premium is required for enabling remote presence and energy monitoring and management. The TSM Premium feature provides the following functions:

• Remotely viewing video with graphics resolutions up to 1920x1200 at 60 Hz with up to 24 bits per pixel colors
• Remotely accessing the system 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 system
• Enabling support for Lenovo XClarity Energy Manager for power monitoring and management

The following table lists the Premium management option.

Lenovo XClarity Administrator

Lenovo XClarity is a centralized systems management solution that helps administrators deliver infrastructure faster. This solution integrates easily with Lenovo x86 rack servers, Flex System, and RackSwitch switches, providing automated agent-less discovery, monitoring, firmware updates, configuration management, and bare metal deployment of operating systems and hypervisors across multiple systems.

Lenovo XClarity Administrator is an optional software component for the RD550 which can be downloaded and used at no charge to discover and monitor the server.

If software support is required for Lenovo XClarity Administrator, 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.

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

Select models of the RD550 server ship without a rail kit and a cable management arm. The following table lists rack installation options that are available for the RD550 server.

* Optional for the 1U 4-Post Slide Rail Kit (4XF0G45871).
** Optional for the 4-Post Static Rail Kit (4XF0G45873).

The following table summarizes the rail kit features and specifications.

* The rack must be at least 42U 1200 mm (47.24 in.) deep if a CMA/CMB is used.
** Measured when mounted on the rack, from the front surface of the front mounting flange to the rear most point of the rail.

Note: ThinkServer rail kits are not supported in rack cabinets with the threaded mounting holes.

The RD550 server has the following dimensions and weight (approximate):

• Width
  • Without rack handles: 447 mm (17.6 inches)
  • With rack handles: 482 mm (19.0 inches)
• Depth
  • Without rack handles and power supply handles: 780 mm (30.7 inches)
  • With rack handles and power supply handles: 803 mm (31.6 inches)
• Height: 43 mm (1.7 inches)
• Weight
  • Without package: 13.5 kg (29.8 lb) to 21 kg (46.3 lb)
  • With package: 19.8 kg (43.7 lb) to 27.3 kg (60.2 lb)

The RD550 server complies with ASHRAE Class A2 specifications. Depending on the hardware configuration, some server models comply with ASHRAE Class A3 and Class A4 specifications. To comply with ASHRAE Class A3 and Class A4 specifications, the RD550 server models need to meet the following hardware configuration requirements:

• Lenovo-qualified CPU except the following types:
  • 135-watt CPU (4-core, 6-core, or 8-core)
  • 145-watt CPU (14-core or 18-core)
• Two power supplies (except the 1100-watt power supplies) installed for redundancy

The RD550 server is supported in the following environment:

• Air temperature:
  • Operating:
    • ASHRAE Class A4: 5 °C - 45 °C (41 °F - 113 °F); for altitudes above 900 m (2,953 ft), decrease the maximum ambient temperature by 1 °C for every 125-m (410-ft) increase in altitude
    • ASHRAE Class A3: 5 °C - 40 °C (41 °F - 104 °F); for altitudes above 900 m (2,953 ft), decrease the maximum ambient temperature by 1 °C for every 175-m (574-ft) increase in altitude
    • ASHRAE Class A2: 10 °C - 35 °C (50 °F - 95 °F); for altitudes above 900 m (2,953 ft), decrease the maximum ambient temperature by 1 °C for every 300-m (984-ft) increase in altitude
  • Storage: -40 °C - +60 °C (-40 °F - 140 °F)
• Maximum altitude: 3,048 m (10,000 ft)
• Storage: -40 °C - +60 °C (-40 °F - 140 °F)
• Humidity:
  • Operating:
    • ASHRAE Class A4: 8% - 90% (non-condensing)
    • ASHRAE Class A3: 8% - 85% (non-condensing)
    • ASHRAE Class A2: 8% - 80% (non-condensing)
  • Storage: 8% - 90% (non-condensing)
• Electrical:
  • 100 - 127 (nominal) V AC; 50 Hz - 60 Hz
  • 200 - 240 (nominal) V AC; 50 Hz - 60 Hz
  • 240 V DC (supported in China only)
• Noise level:
  • 5.7 bels (operating)
  • 5.6 bels (idle)

The RD550 server has a three-year or one-year warranty (model dependent) with 24x7 standard call center support and 9x5 next business day onsite coverage. Lenovo offers warranty maintenance upgrades and post-warranty maintenance agreements with a well-defined scope of services, including service hours, response time, and length of service coverage.

The Lenovo QuickPick tool helps locate compatible accessories and services and warranty information. Services offered may vary by geographic location. Access the tool via the following URL:
http://lenovoquickpick.com

The following Lenovo warranty service upgrades are available:

• Warranty and maintenance service upgrades:
  • Three, four, or five years of 9x5 or 24x7 service coverage
  • Onsite response time from next business day to 4 hour same-day
  • Warranty extension of up to 5 years
  • Post warranty extensions offered in 1-year increments
• Priority Technical Support

  Lenovo’s Priority Support Offering enhances our award-winning call center support to provide top priority queue assignment to specialized Lenovo technicians. Priority support accelerates call center troubleshooting to get your problems resolved quickly, and includes other value-added support for Lenovo provided software tools. Priority support can be purchased stand alone to match the base warranty of your system or in convenient bundles with our same-day response services.

• Keep Your Drive Multi-Drive

  Lenovo’s Keep Your Drive Multi-Drive service is a multi-drive hard drive retention offering that ensures your data is always under your control, regardless of the number of hard drives that are installed in your Lenovo server. In the unlikely event of a hard drive failure, you retain possession of your hard drive while Lenovo replaces the failed drive part. Your data stays safely on your premises, in your hands. Keep Your Drive Multi-Drive covers multiple drives and multiple failures with one service offering at one value price. This service can be purchased stand-alone to match the base warranty of your system or in convenient bundles with our same-day response services.

The RD550 conforms to the following regulations:

• RoHS
• Energy Star V2.0
• FCC class A: USA FCC 47 CFR Part 15-Subpart B; ANSI C63.4
• ICES class A: Canada ICES-003 Issue 5
• CB
• UL/cTUVus
• Germany GS
• Russia EAC
• Argentina AR-S
• Mexico NOM
• EU CE: EN55022; EN55024; EN61000-3-2;EN61000-3-3
• International: CISPR22; CISPR 24
• Brazil (voluntary)
• China CCC: GB 9254
• CECP
• CELP
• Green Guard

The following table lists the 6 Gbps SAS external drive enclosures that are offered by Lenovo that can be used with the RD550 for storage expansion.

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 relationship models of the 12 Gbps SAS external drive enclosures that are offered by Lenovo that can be used with the RD550 for storage expansion.

* Available worldwide (except China and Japan)
^ Available only in China
** Available only in Japan

The following table lists the TopSeller models of the 12 Gbps SAS external drive enclosures that are offered by Lenovo that can be used with the RD550 for storage expansion.

For details about supported drives, adapters, and cables for the Lenovo Storage D1212 and D1224, see the Lenovo Press Product Guide:
http://lenovopress.com/lp0512

The following table lists the external storage systems that are currently offered by Lenovo that can be used with the RD550 in IT solutions.

* Available worldwide (except China and Japan).
^ Available only in China.
** Available only in Japan.
† Available worldwide except Latin America.
‡ Available only in Latin America.
# x represents a geo-specific letter (for example: U = North America, G = EMEA). Ask a Lenovo representative for specifics.

The following table lists the backup units that are offered by Lenovo that can be used in RD550 solutions.

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

The following table lists the Ethernet LAN switches that are offered by Lenovo that can be used with the RD550 server in IT solutions.

For more information, see the list of Product Guides in the Top-of-rack Switches category:
http://lenovopress.com/servers/options/switches#rt=product-guide

The following table lists currently available Fibre Channel SAN switches that are offered by Lenovo that can be used with the RD550 in IT solutions.

For more information, see the list of Product Guides in the Rack SAN Switches category:
http://lenovopress.com/storage/switches/rack#rt=product-guide

The following table lists the rack cabinets that are offered by Lenovo that can be used in RD550 solutions.

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

The following table lists the KVM switches and consoles that are offered by Lenovo that can be used in RD550 solutions.

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

The following table lists the power distribution units (PDUs) that are offered by Lenovo that can be used in RD550 solutions.

For more information, see the list of Product Guides in the Power Distribution Units category:
http://lenovopress.com/servers/options/pdu

The following table lists the uninterruptible power supply (UPS) units that are offered by Lenovo that can be used in RD550 solutions.

For more information, see the list of Product Guides in the Uninterruptible Power Supply Units category:
http://lenovopress.com/servers/options/ups

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 your region specific offers please ask your Lenovo sales representative or your technology provider about the use of Lenovo Financial Services. For more information, see the following Lenovo website:
http://www.lenovofs.com

For more information, see these resources:

• ThinkServer RD550 User Guide and Hardware Maintenance Manual
  http://download.lenovo.com/pccbbs/thinkservers/rd550ughmm_en.pdf
• Lenovo Support for ThinkServer RD550
  http://datacentersupport.lenovo.com/us/en/products/servers/thinkserver/rd550
• ThinkServer Power Planner
  http://support.lenovo.com/us/en/downloads/ds101155