Lenovo 42U and 48U Heavy Duty Rack Cabinets

Lenovo Heavy Duty Rack Cabinets are industry-standard 19-inch datacenter cabinets that are designed for high performance and high availability server and storage environments. They are optimized to help maximize floor space utilization, expedite installation, simplify cable management, and increase accessibility for improved serviceability while providing market leading configuration flexibility.

The rack cabinets are available in both 42U and 48U rack units heights designed to affordably, safely, and securely handle shipping fully loaded configurations up to 3500 lb (1588 kg) and 4000 lb (1814 kg) respectively. This enables you to receive your most capable and highest performing Lenovo solutions fully installed and integrated in the rack and ready to instantly deploy into your data center.

Figure 1. Lenovo 42U and 48U Heavy Duty Rack Cabinets in Pearl-White and Onyx-Black

Lenovo Heavy Duty Rack Cabinets support a variety of Lenovo Neptune™ liquid cooling solutions. You can equip them with passive Rear Door Heat Exchangers to remove up to 35kW (42U) and 45kW (48U) into 16°C cold water at 25°C ambient temperature or go up to 50°C hot-water cooling when integrating Lenovo ThinkSystem SD650 V2 and ThinkSystem SD650-N V2 for leading performance density.

The features of the Heavy Duty Rack Cabinets include:

• Designed for high performance and high availability environments
  • 600mm x 1200mm industry standard footprint both in 42U and in 48U EIA capacity.
  • Four easily adjustable leveling pads ensure stability and prevent rolling on casters.
  • Compliance with the EIA-310-E industry standard for 19-inch, type A rack cabinets.
  • Lockable doors and side panels provide a more secure environment for equipment and data.
• Highly customizable to your environment and preferences
  • Choice of beautiful Onyx (black) and Pearl (white) color for the most stunning datacenters in the world.
  • Choice of perforated rear door for ambient air cooling or Rear Door Heat Exchanger for room neutral liquid cooling.
  • Choice of side panels for standalone or isolated use-cases or side-by-side in row-configuration.
  • Choice of extension kits for the front to support thermally optimal and easily serviceable cabling and the rear to provide additional space for manifold or 0U components.
• Supporting the densest and most component-rich solutions
  • Support shipping ready for instant deployment fully integrated solutions up to 4000 lb (1814 kg).
  • Robust frame, mounting rails, and shock re-usable packaging to protect the heaviest loads in transit.
  • Integrated outriggers for dynamic tilt stability and safety at maximum loads.
  • Supports Lenovo Neptune Direct-Water Cooled solutions with rack level manifolds.
• Provides full configurability for all the power you need
  • Up to six (42U) or eight (48U) sidewall compartments to support installation of 1U PDUs without unnecessarily taking up valuable rack space.
  • Up to four mounting points for 0U PDUs conserves valuable EIA space for IT equipment, simplifies cable management, reduces installation time and increases accessibility.

The Heavy Duty Rack Cabinets are delivered on a reusable shock-resistant pallet ready for transport. The following figure shows the features of the Heavy Duty Rack Cabinets including the outriggers that aid the stability of the rack during movement, especially when the racks are fully loaded.

Figure 2. Front and rear views of the Heavy Duty Rack Cabinets

The following table compares the specifications of the racks.

For additional dimensions and weights, see the Physical specifications section.

Models of the Heavy Duty Rack Cabinets can be configured by using the Lenovo Data Center Solution Configurator (DCSC).

Configure-to-order (CTO) models are used to create models with factory-integrated server customizations. For CTO models, three base machine types are available for the Heavy Duty Rack Cabinet as listed in the following table, 7D6D, 7D6E and 1410:

• The 7D6D (42U) and 7D6E (48U) base machine types are for general business and is selectable by choosing General Purpose or HPC & AI ThinkSystem Hardware mode in DCSC.
• The 1410 base machine type is intended for Lenovo Scalable Infrastructure (LeSI) configurations and is enabled using the HPC & AI LeSI Solutions mode in DCSC. 1410 configurations can also be built using System x and Cluster Solutions Configurator (x-config).

The following table lists the base CTO models of the Heavy Duty Rack Cabinet.

The following table lists the pre-configured models of the Heavy Duty Rack Cabinet. Listed in the table are standalone rack cabinets as well as rack cabinets without side panels that are intended to be attached to an existing rack cabinent as an expansion cabinet.

The Heavy Duty Rack Cabinets can be customized for your preferences and specific use case or deployment scenario.

• 180mm Extensions
• 85mm Slim Extensions
• 100mm Slim Extensions for RDHX
• Rear doors
• Side Panels
• Cable management options

180mm Extensions

The 1200mm standard depth of the rack cabinets can be extended by 180mm both in the front and the rear. The front extension can provide additional space for optimal front cabling, which can be beneficial both from a servicing point of view and from a thermal point of view. The rear extension can provide additional space for additional 0U PDUs or deeper than usual systems within the rack cabinet.

Ordering information is listed in the following table.

All extensions come with four 178mm by 89mm openings to allow for inter-rack cabling without having to leave the rack through the top to overhead trays or through the bottom into a raised floor. The following figure shows the contents of the rack extension part numbers. As well as the two sides [1] and [2], the kit includes one top cover [3], two front covers [4] and necessary screws to attach the extension to the rack cabinet [5], [6] and [7].

Figure 3. Contents of Rack Extension part numbers

85mm Slim Extensions

As an alternative to the 180mm rack extensions, the 42U Onyx racks also support an 85mm slim extension. The slim extension can be installed at the front or rear of the cabinet (or both front and rear).

100mm Slim Extensions for RDHX

As an alternative to the 180mm rack extension, the 42U Onyx rack also support an 100mm slim extension at the rear of the cabinet with the Rear Door Heat Exchanger (RDHX) attached.

Rear doors

Depending on the choice of cooling and preference of aesthetics the Heavy Duty Rack Cabinet can be ordered with a perforated rear door for ambient air cooling, a passive Rear Door Heat Exchanger leveraging Lenovo Neptune technology for liquid cooling or no rear door at all to, for example, show case a beautiful cabling job.

Ordering information is listed in the following table.

The following figure shows the standard rear door and the Rear Door Heat Exchanger, installed in 42U rack cabinets.

Figure 4. Standard rear door and the Rear Door Heat Exchanger

Side Panels

The Heavy Duty Rack Cabinets can be configured with and without side panels or even just one with the choice of side, to map exactly to your requirements. Choose both side panels if the rack cabinet will be placed standalone or you want to isolate airflow, choose one side panel with left or right placement for racks that are at the end of a rack row and leave them off for racks that are placed inside the row.

Attachment brackets to connect and secure adjacent racks together are included with all racks.

Cable management options

Proper cable management is a crucial part of a rack design to allow for optimal airflow and also easy serviceability of the populated rack cabinet. For that reason, the Heavy Duty Rack Cabinet comes by default equipped with rear cable management anchor points for a clean and beautiful cabling.

Additionally there is a choice for front cable management brackets to provide additional anchor points for front-cabled systems, and cable management brackets for use in the rear when 0U PDUs are installed.

The Heavy Duty Rack Cabinets support both 0U power distribution units (PDUs) mounted vertically in the rear as well as 1U PDUs that can be installed either within the horizontal rack space or the vertical rack side pockets.

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

Expected performance of the 42U heat exchanger is illustrated in the following figure for a typical inlet air temperature of 27°C (80.6°F), with a fully populated rack, near uniform power dissipation, and a 30-40 kW heat load.

Figure 5. Typical performance of the 42U heat exchanger, 30 kW heat load

Performance data is shown in the following figure for a 20 kW heat load. Because of the lower heat load, a specific level of cooling can be achieved with warmer water, a lower flow rate, or both.

Figure 6. Typical performance of the 42U heat exchanger, 20 kW heat load

By selecting the correct water inlet temperature and water flow rate, you can achieve the necessary heat removal. A heat removal of 100% indicates that an amount of heat equivalent to that generated by the devices has been removed by the heat exchanger and the average air temperature leaving the heat exchanger is identical to that entering the rack (27°C /80.6°F in this example).

Heat removal in excess of 100% indicates that the heat exchanger not only removed all of the heat generated by the devices but further cooled the air so that the average air temperature leaving the rack is actually lower than that entering the rack.

A given water temperature may be used only if the system that is supplying the water is able to measure the room dew point and automatically adjust the water temperature accordingly. Otherwise, the water temperature must be above the maximum dew point that is allowed at that data center installation.

Customers should work with their Lenovo Sales Architects and Datacenter Infrastructure Specialists for an exact sizing for their project.

The following table lists the dimensions and weight of the rack cabinets.

The following image shows the location of the casters (wheels) in relation to the overall dimensions of the rack cabinet.

Figure 7. Location of the casters (distances in millimeters)

The Heavy Duty Rack Cabinets have the following operating environment requirements:

RDHX water requirements

The water requirements for the Rear Door Heat Exchanger is as follows:

• Water Temperature:
  • Above dewpoint
  • 18°C / 64.4°F for ASHRAE Class 1 Environment
  • 22°C / 71.6°F for ASHRAE Class 2 Environment
• Water volume: 9 liters (2.4 gallons)
• Maximum pressure: 689.66 kPa (20psi) / 6.9 bars
• Minimum water flow rate: 22.7 liters (6 gallons) per minute
• Maximum water flow rate: 56.8 liters (15 gallons) per minute
• Water connections: 3/4 quick connect

Note: The water required to initially fill the system side cooling loop must be reasonably clean, bacteria- free water (<100 CFU/ml) such as de-mineralized water, reverse osmosis water, de-ionized water, or distilled water. The water must be treated with anti-biological and anti-corrosion measures. The water cannot originate from the primary chilled-water system for the building but must be supplied as part of a secondary, closed-loop system.

Important: Do not use glycol solutions, because they can adversely affect the cooling performance of the heat exchanger

Tilt, shock and vibration

The rack cabinets have the following tilt, vibration and shock limits:

• Tilt:
  • 42U cabinet: 12.5 degrees
  • 48U cabinet: 10 degrees
• Vibration: 0.8 G rms at 2 Hz to 200 Hz for 15 minutes
• Shock: See the following table

For additional information, see the Specifications section of the Setup Guide for the rack cabinet, available from the Lenovo ThinkSystem Information Center, https://thinksystem.lenovofiles.com/help/index.jsp

The Heavy Duty Rack Cabinets conform to the following international standards:

• UL 2416
• China VOC (GB 30981-2020)

The Heavy Duty Rack Cabinets have a 3 year warranty:

• Lenovo ThinkSystem 42U Heavy Duty Rack Cabinet (7D6D) - 3 year warranty
• Lenovo ThinkSystem 48U Heavy Duty Rack Cabinet (7D6E) - 3 year warranty
• Lenovo EveryScale Heavy Duty Rack Cabinet (1410) - 3 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:

• Premier Support

  Premier Support provides a Lenovo-owned customer experience and delivers direct access to technicians skilled in hardware, software, and advanced troubleshooting, in addition to the following:

  • Direct technician-to-technician access through a dedicated phone line
  • 24x7x365 remote support
  • Single point of contact service
  • End to end case management
  • Third-party collaborative software support
  • Online case tools and live chat support
  • On-demand remote system analysis

• 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
  • Essential Service: 24x7 service coverage with 4-hour onsite response or 24-hour committed repair (available only in select markets)
  • Advanced Service: 24x7 service coverage with 2-hour onsite response or 6-hour committed repair (available only in select markets)
• 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.

• 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.

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 Press Rack Cabinet Reference:
  https://lenovopress.com/lp0658-lenovo-rack-cabinet-reference
• Heavy Duty Rack Cabinets product publications
  https://thinksystem.lenovofiles.com/help/topic/hdc_rackcabinet/ic_introduction.html
  • User Guide
  • Unpacking Instructions
  • Rear Door Heat eXchanger V2 Installation and Maintenance Guide
• Lenovo Hardware Installation & Removal Videos on the Heavy Duty Rack Cabinets:
  https://www.youtube.com/playlist?list=PLYV5R7hVcs-DOG7dnH9Zxy67Q3dez4ZsM
• LeSI product page:
  https://www.lenovo.com/us/en/data-center/servers/high-density/Lenovo-Scalable-Infrastructure/p/WMD00000276
• DCSC configurator:
  https://dcsc.lenovo.com/
• x-config configurator:
  https://lesc.lenovo.com/products/hardware/configurator/worldwide/bhui/asit/x-config.jnlp