Lenovo ThinkSystem DB820S FC SAN Switch

The Lenovo ThinkSystem DB820S Gen 8 FC SAN Switch is a high-performance, 1U Fibre Channel switch, purpose-built to meet the demanding needs of modern data centers. With 56 128G SFP+ ports and unmatched low latency, this switch delivers exceptional bandwidth and throughput, making it ideal for fueling enterprise AI and modern workloads. With its compact design, the DB820S Switch enables efficient use of rack space while providing the scalability necessary for future growth.

As workloads become more demanding, cyber threats become more sophisticated, and the spectrum of threats expands, it is essential to fortify the storage network against hidden risks. The network must deliver optimal performance, operate autonomously, streamline management, and protect critical data. Brocade Gen 8 technology delivers the performance, automation, and security necessary to enable these capabilities.

Integrated security with quantum-resistant encryption and embedded SAN AI technology safeguards SAN fabrics against cybersecurity threats in the era of quantum computing and modernizes SAN management to operate autonomously and efficiently. This enables faster decision making, improves operational efficiency, and maintains high levels of resiliency.

The following figure shows the Lenovo ThinkSystem DB820S Gen 8 FC SAN Switch.

Figure 1. Lenovo ThinkSystem DB820S Gen 8 FC SAN Switch

The DB820S is designed for maximum flexibility and value. This enterprise-class switch offers pay-as-you-grow scalability with Ports on Demand (PoD). Organizations can quickly, easily, and cost-effectively scale from 24 ports to 56 ports in an efficient 1U form factor that delivers industry-leading port density and space utilization. This switch also provides easy integration into existing SAN environments -- from 16Gb to 128Gb speeds -- while introducing the benefits of Gen 8 Fibre Channel connectivity. And the DB820S simplifies deployment, configuration, and management of SAN resources with a collection of easy-to-use tools.

With Lenovo FC SAN switch offerings, Lenovo can be your trusted partner that offers "one stop shop" and single point of contact for delivery of leading-edge technologies and innovations from Lenovo and other leading IT vendors. These offerings can satisfy the wide range of your end-to-end IT infrastructure needs, including end-user devices, servers, storage, networking, services, management software, and financing.

The DB820S provides exceptional price/performance value by including standard enterprise class software standard like Fabric Vision®, ISL Trunking and Integrated Routing.

The ThinkSystem DB820S FC SAN Switch offers the following features and benefits:

• Build high-performance fabrics with a powerful, 56-port 1U Fibre Channel switch
• Accelerate workloads with 128G bandwidth and unmatched low latency
• Enables pay-as-you-grow scalability from 24 to 56 x 128G ports in 8-port increments on demand
• Protect critical information from quantum computing and cybersecurity threats with advanced cryptographic algorithms and enhanced access controls
• Eliminate time-consuming, manual correlation of all application resources
• Learn and adapt to changing application demands by dynamically load balancing across virtual channels
• Simplify complex telemetry into actionable insights to improve performance, reduce downtime, and simplify operations
• Visualize the data to easily understand the health and performance of the SAN
• Unlock greater value and efficiency with access to all software features

The DB820S Switch delivers six nines (99.9999%) availability for nonstop operations with minimal downtime. In modern IT infrastructure, humans are not fast enough to respond and maintain the uptime the environment requires, and this drives the need for intelligent autonomy. Built-in congestion management ensures traffic flows smoothly and performance remains consistent, while self-healing capabilities maintain uptime even when issues arise. Set-and-forget automation eliminates the need for constant monitoring and manual intervention, reducing troubleshooting time and enabling IT teams to focus on strategic initiatives.

Build High-Performance Fabrics with Powerful Building Blocks

The DB820S Switch is a fixed-port building block, designed to scale-out fabrics and unleash performance. With 56 ports at 128G and unmatched low latency, in a compact switch design, organizations can accelerate workloads and achieve greater workload density in less space. Offering pay-as-you-grow scalability with Ports on Demand (POD) enables organizations to quickly and easily scale from 24 to 56 ports in 8-port increments on demand. The pay-as-you-grow architecture enables flexible, cost-effective scalability by allowing organizations to activate only the ports they need and easily expand as requirements grow, reducing upfront costs, eliminating overprovisioning, and providing seamless, non-disruptive capacity growth. This switch provides convenient access to all software features, unlocking greater value and efficiency. Organizations can immediately utilize essential functionality without having to purchase and manage licenses or install any software.

To simplify SAN operations, the DB820S Switch offers easy-to-use management tools that improve efficiency and provide organizations with greater visibility and control. Brocade Web Tools features a built-in simplified user interface, making it easier to manage everyday tasks. To streamline management workflows, organizations can leverage Brocade SANnav™ Management Portal that features modern dashboards, faster troubleshooting, and accelerated deployment of applications, servers, switches, and storage.

Defend the Data Center with Advanced Security

The DB820S Switch is built on a cyber-resilient, quantum-safe architecture that fortifies the SAN to protect critical data and applications from quantum computing and cybersecurity threats. By securing storage traffic through Fibre Channel isolation and role-based access controls, Brocade based networks protect against unauthorized access. The switch uses hardened Fabric OS® and hardware, eliminating unnecessary access points, while validating hardware and software roots of trust to ensure only authenticated components operate within the system. These capabilities reduce the risk of hijacking and the installation of malicious software.

The DB820S Switch features Brocade Gen 8 technology, which protects SAN fabrics against cyber threats through quantum-resistant 256-bit encryption and advanced cryptographic algorithms. With post-quantum cryptography algorithms integrated, this switch is resistant to quantum attacks, protecting sensitive data and critical infrastructure from being decrypted by future quantum computers. In addition, the Brocade Gen 8 technology further hardens the SAN to minimize the attack surface with strong access controls and limited privileges using the industry-best practice, principle of least privilege architecture. This architecture grants users, applications, and systems only the minimum level of access or permissions necessary to perform their essential functions. Locking down access strengthens the overall system security and reduces vulnerabilities to security breaches, accidental errors, or intentional misuse of privileges.

Brocade SANnav Management Portal further enhances security by enabling real-time monitoring of the SAN’s security configuration, fabric health, and performance. It automates security assessments and helps you maintain best practices, providing alerts for security configuration inconsistencies or issues. Proactive measures can help detect vulnerabilities early and offer guidance on how to address them, ensuring that your enterprise data remains secure against both cyber threats and operational disruptions.

Modernize SAN Management with AI-Powered Autonomy

Brocade Gen 8 technology offers a comprehensive suite of features that maximize network uptime, simplify SAN management, and provide unprecedented visibility and insight across the storage network. The DB820S Switch with Gen 8 technology is equipped with embedded SAN AI technology, which automates application infrastructure management and offers a robust analytics architecture that reduces the need for manual administration, ensuring a resilient network that remains stable and efficient even as workloads and infrastructure complexity continue to grow. Brocade Gen 8 technology modernizes SAN management with AI-powered autonomy that learns, adapts, and responds to potential issues using intelligence and automation technologies developed over three decades in the most demanding IT environments.

With SAN Fabric Intelligence (SAN FI), administrators can eliminate time-consuming, manual correlation of all application resources. This advanced feature combines monitoring, troubleshooting, and cross-correlation of servers, storage, virtual machines (VMs), and fabric connections to provide a comprehensive view of the fabric. Utilizing SAN FI provides administrators with complete, end-to-end visibility for all connected devices and components within your SAN fabric and the ability to drill down into points of interest to accelerate troubleshooting and drive smarter management decisions. This automation helps alleviate the chronic understaffing of IT infrastructure teams, providing a significantly faster response time than a human could achieve.

With self-optimizing capabilities, Brocade technology utilizes actionable intelligence to maximize performance. Real-time monitoring of health and performance characteristics enables the network to make smarter decisions on traffic prioritization, congestion management, and notification, ensuring optimal network performance for applications and storage. Brocade Adaptive Traffic Optimizer guarantees critical application performance by automatically prioritizing traffic. When traffic characteristics in the fabric change, the performance groups dynamically adapt to provide the optimal performance group configuration for the individual fabric. This advanced capability classifies and separates traffic with similar characteristics, such as protocol, speed, and latency. Additionally, Adaptive Traffic Optimizer can help avoid application performance impacts by automatically isolating traffic that is adversely impacting other flows.

Brocade Gen 8 leverages extensive data collection capabilities coupled with powerful analytics to quickly understand the health and performance of the environment and identify any potential impacts or trending problems. Built-in intelligence automatically collates millions of data points from across the fabric and simplifies complex telemetry into actionable insights to improve performance, reduce downtime, and simplify operations. In addition, autonomous SAN features monitor fabric behavior, detect anomalies, and self-correct before issues impact performance.

Access Gateway Mode

The DB820S Switch can be deployed in full-fabric switch mode or in Brocade Access Gateway mode, which simplifies connecting the switch to existing storage area networks. By utilizing the Fibre Channel N_Port ID Virtualization (NPIV) standard, Access Gateway mode can connect to the core SAN switches as a transparent edge switch, simplifying SAN fabric configuration and management while connecting physical and virtual servers directly to larger SAN fabrics. The DB820S Switch in Access Gateway mode connects servers to NPIV-enabled SAN fabrics.

Organizations can enable Access Gateway through Command Line, Web Tools, or Brocade SANnav™ Management Portal. Key benefits of Access Gateway mode include the following:

• Improved scalability for large or rapidly growing server and virtual server environments
• Reduced management of the network edge, since Access Gateway does not have a domain identity and appears transparent to the core fabric
• Support for heterogeneous SAN configurations without reduced functionality for server connectivity

The following figure shows the port-side view of the DB820S FC SAN Switch.

Figure 2. DB820S FC SAN Switch port-side view

The following figure shows the non-port side view of the DB820S FC SAN Switch.

Figure 3. DB820S FC SAN Switch non-port-side view

The following table lists the ThinkSystem DB820S system specifications.

The following table lists the ThinkSystem DB820S FC SAN Switch models.

The DB820S FC SAN Switch part numbers include the following items:

• One FC SAN Switch includes 24 ports activated and 24 transceivers
  • Model CTO1WW/CTO3WW: 64 Gb FC SWL SFP+ transceivers included
  • Model CTO2WW/CTO4WW: 128 Gb FC SWL SFP+ transceivers included
• Rubber feet for setting up the switch as a standalone unit
• Universal rack mount kit, 4-post & installation guide
• A new Mini-USB to RJ-45 console adapter that now has thumb screws
• A USB-C to RJ-45 console cable (similar to the DB710S switch)
• Web pointer document (Downloading FOS, SANnav and Docs)
• Firmware Download Instructions Flyer (Instructions for downloading publicly-available Brocade docs + docs behind CSP + access to open source code.)

Note: The switch comes standard without power cords; two power cables must be purchased together with the switch (see Power supplies and cables for details).

The DB820S FC SAN Switch Model includes 24 licensed ports and 24 x 64/128 GB FC SWL SFP+ Transceivers depending on the model. The remaining 32 unlicensed ports can be activated by purchasing and installing the Ports on Demand (POD) licenses that are available with transceivers in 8-port increments.

With the flexibility of the DB820S FC SAN Switch, customers can choose the following connectivity technologies:

• SFP+ ports
  • For 128 Gb FC links, customers can use 128 Gb FC SFP+ SWL optical transceivers for distances up to 100 meters on OM4/OM5 or up to 70 meters on OM3 50 µ multimode fiber (MMF) optic cables. These transceivers can operate at 128Gbps, 64Gbps or 32 Gbps speeds.
  • For 64 Gbps FC links, customers can use 64 Gb FC SFP+ SWL optical transceivers for distances up to 100 meters on OM4/OM5 or up to 70 meters on OM3 50 µ MMF cables. For longer distances, the 64 Gb FC LWL SFP+ optical transceivers can support up to 10 km on SMF cables. For extended distances, the 64 Gb FC ELWL SFP+ optical transceivers can support up to 25 kilometers on SMF cables. These transceivers can operate at 64 Gbps, 32 Gbps, or 16 Gbps speeds.
• 1 GbE RJ-45 management port: Customers can use UTP cables for distances up to 100 meters.

The DB820S FC SAN Switch comes with 24x 64 Gb or 128 Gb FC SWL SFP+ transceivers. Additional SWL, LWL, and ELWL SFP+ transceivers can be ordered for the switch, if needed.

The following table lists the supported transceiver and cable options. POD kits and switches come with SWL optics included.

The following table lists the cabling requirements for the switch.

For details on features supported with the DB820S FC SAN Switch look for the latest Administration Guide for the latest available Fabric OS version:
https://www.broadcom.com/products/fibre-channel-networking/software/fabric-operating-system

The following features comes standard with the DB820S FC SAN Switch:

• Enterprise Bundle
  • ISL Trunking (TRK): Allows frame-based consolidation of up to 8 inter-switch links (ISLs) into fault-tolerant and load-balanced trunks with bandwidth of up to 256 Gbps.
  • Fabric Vision (FV)
    • Monitoring and Alerting Policy Suite (MAPS): Provides a policy-based, fabric-wide threshold monitoring and alerting tool.
    • Flow Vision: Identifies, monitors, and analyzes specific application flows.
    • VM Insight: Seamlessly monitors health and performance of individual Virtual Machines (VMs) to quickly identify abnormal VM behavior and enable administrators to proactively facilitate troubleshooting and fault isolation, helping to ensure performance and operational stability.
    • IO Insight: Proactively monitors I/O performance and behavior to gain deep insight into issues and ensure service levels by non-disruptively and non-intrusively gathering I/O statistics for storage traffic and applying this information within a policy-based monitoring and alerting suite to configure thresholds and alarms.
    • Fabric Performance Impact (FPI) Monitoring: Leverages predefined MAPS policies to automatically identify and isolate devices that cause network performance issues by detecting different latency severity levels, and to alert administrators.
  • Extended Fabric (EF): Extends Fibre Channel SANs beyond 10 km distance limitations for replication and backup at full bandwidth.

  • FICON / Control Unit Port (CUP). The Control Unit Port provides an in-band management interface that the FICON host (Mainframe) can use for managing and monitoring the FC SAN switch.

• Integrated Routing: The FC-FC routing service provides Fibre Channel routing between two or more fabrics without merging those fabrics.

Lenovo offers optional Brocade SANnav™ Management Portal and SANnav Global View software license subscriptions that provide comprehensive visibility into the SAN environment, allow administrators to quickly identify, isolate, and correct problems, and accelerate administrative tasks by simplifying and automating workflows.

SANnav Management Portal is a next-generation SAN management application with a simple browser-based user interface (UI) and with a focus on streamlining common workflows, such as configuration, zoning, deployment, monitoring, troubleshooting, reporting, and analytics.

SANnav Management Portal supports all Brocade SAN switches and platforms that run the Fabric OS® version 7.4 or above, including Lenovo DB610S, DB620S, DB630S, DB400D, DB710S, DB720S, DB730S, DB820S, DB800D, Brocade Directors X7 and X8. SANNav Version 3.X to manage Gen 8 switches.

With SANnav Global View, administrators can quickly visualize the health, performance, and inventory of multiple SANnav Management Portal instances using a simple, intelligent dashboard and can easily navigate from a global view down to local environments to investigate points of interest. SANnav Global View is designed to manage up to 20 SANnav Management Portal instances.

For more information, refer to the SANnav Management Portal documentation:
http://www.broadcom.com/products/fibre-channel-networking/software/sannav-management-portal#documentation

The following table lists ordering information for the optional SANnav Management Portal and SANnav Global View management tools. After a client has an active SANnav license, Lenovo offers a “license extension/renewal”. This offering provides our clients the flexible to extend their subscription down to a specific end date. This allows clients the ability to align to your company’s budget or align with warranty of your FC SAN switches/directors. Please engage directly with your Lenovo sales representative for more details.

The DB820S FC SAN Switch supports the standards listed at the following web page:

https://www.broadcom.com/support/fibre-channel-networking/san-standards/standards-compliance

The DB820S FC SAN Switch ships with two redundant hot-swap 650W AC power supplies (100-240V). Each power supply has an IEC 309-C14 connector and an 80 Plus Platinum efficiency rating, plus integrated fans with additional airflow for cooling.

The switch comes standard without a power cord; two rack power cables or line cords must be ordered together with the switch (see the following table).

* Available for factory-built custom configurations and solutions only.

The DB820S FC SAN Switch comes standard with the fixed rack mount kit that can be used for 4-post rack installations. If needed, the DB820S FC SAN Switch can be mounted in a 2-post rack cabinet by using the optional mid-mount rack kit that is listed in the following table.

The optional mid-mount rack kit for the DB820S FC SAN Switch is shown in the following figure.

Figure 4. Lenovo Mid-mount Rack Kit

The DB820S FC SAN Switch has the following dimensions and weight (approximate):

• Height: 4.37 cm (1.72 in.)
• Width: 44 cm (17.32 in.)
• Depth: 39.68 cm (15.62 in.)
• Weight: 8.39 kg (18.5 lb) with two power supplies, fans, without transceivers. 9.48 kg (20.9 lb) with two power supplies, fans, fully populated with transceivers

The DB820S FC SAN Switch is supported in the following environment:

• Air temperature:
  • Operating: 0°C to 40°C (32°F to 104°F)
  • Non-operating: -25°C to +70°C (-13°F to 158°F)
• Maximum altitude:
  • Operating: 3,000 m (9,842 ft)
  • Non-operating: 12,000 m (39,370 ft)
• Humidity:
  • Operating: 10% to 85% non-condensing
  • Non-operating: 10% to 90% non-condensing
• Electrical power:
  • AC Voltage range: 90V to 264V, maximum input current 9.7A
  • AC Frequency: 50 Hz to 60 Hz nominal, 47 Hz to 63 Hz range
  • Power consumption measured based on 240V input and 128G SWL SFP+ optics (differs based on VAC input @100 or @200):
    • Idle power draw: 146W for an empty chassis with no transceivers
    • Typical power draw:
      • 262W with 28 128G SWL optics modules under 50% traffic rate, low fan speed, ambient temperature 25°C
      • 336W with 56 128G SWL optics modules under 50% traffic rate, low fan speed, ambient temperature 25°C
    • Maximum power draw: 478W with 56 128G SWL optics modules under 100% traffic rate, max. fan speed, ambient temperature 40°C.
• Heat dissipation (differs based on VAC input):
  • Typical: 56 ports at 1146.79 BTU per hour
  • Maximum: 56 ports at 1638.28 BTU per hour

The DB820S FC SAN Switch, machine type 7DMA, has a three-year warranty.

For more information, consult the brochure Lenovo Operational Support Services for Data Centers Services.

Lenovo Data Center Services empower you at every stage of your IT lifecycle. From expert advisory and strategic planning to seamless deployment and ongoing support, we ensure your infrastructure is built for success. Our comprehensive services accelerate time to value, minimize downtime, and free your IT staff to focus on driving innovation and business growth.

In this section:

• Lenovo Advisory Services
• Lenovo Plan & Design Services
• Lenovo Deployment, Migration, and Configuration Services
• Lenovo Support Services
• Lenovo Managed Services
• Lenovo Sustainability Services

Lenovo Deployment, Migration, and Configuration Services

Optimize your IT operations by shifting labor-intensive functions to Lenovo's skilled technicians for seamless on-site or remote deployment, configuration, and migration. Enjoy peace of mind, faster time to value, and comprehensive knowledge sharing with your IT staff, backed by our best-practice methodology.

• Deployment Services for Storage and ThinkAgile

  A comprehensive range of remote and onsite options tailored specifically for your business needs to ensure your storage and ThinkAgile hardware are fully operational from the start.

• Hardware Installation Services

  A full-range, comprehensive setup for your hardware, including unpacking, inspecting, and positioning components to ensure your equipment is operational and error-free for the most seamless and efficient installation experience, so you can quickly benefit from your investments.

• DM/DG File Migration Services

  Take the burden of file migration from your IT’s shoulders. Our experts will align your requirements and business objectives to the migration plans while coordinating with your team to plan and safely execute the data migration to your storage platforms.

• DM/DG/DE Health Check Services

  Our experts perform proactive checks of your Firmware and system health to ensure your machines are operating at peak and optimal efficiency to maximize up-time, avoid system failures, ensure the security of IT solutions and simplify maintenance.

• Factory Integrated Services

  A suite of value-added offerings provided during the manufacturing phase of a server or storage system that reduces time to value. These services aim at improving your hardware deployment experience and enhance the quality of a standard configuration before it arrives at your facility.

Lenovo Support Services

In addition to response time options for hardware parts, repairs, and labor, Lenovo offers a wide array of additional support services to ensure your business is positioned for success and longevity. Our goal is to reduce your capital outlays, mitigate your IT risks, and accelerate your time to productivity.

• Premier Support for Data Centers

  Your direct line to the solution that promises the best, most comprehensive level of support to help you fully unlock the potential of your data center.

• Premier Enhanced Storage Support (PESS)

  Gain all the benefits of Premier Support for Data Centers, adding dedicated storage specialists and resources to elevate your storage support experience to the next level.

• Committed Service Repair (CSR)

  Our commitment to ensuring the fastest, most seamless resolution times for mission-critical systems that require immediate attention to ensure minimal downtime and risk for your business. This service is only available for machines under the Premier 4-Hour Response SLA.

• Multivendor Support Services (MVS)

  Your single point of accountability for resolution support across vast range of leading Server, Storage, and Networking OEMs, allowing you to manage all your supported infrastructure devices seamlessly from a single source.

• Keep Your Drive (KYD)

  Protect sensitive data and maintain compliance with corporate retention and disposal policies to ensure your data is always under your control, regardless of the number of drives that are installed in your Lenovo server.

• Technical Account Manager (TAM)

  Your single point of contact to expedite service requests, provide status updates, and furnish reports to track incidents over time, ensuring smooth operations and optimized performance as your business grows.

• Enterprise Software Support (ESS)

  Gain comprehensive, single-source, and global support for a wide range of server operating systems and Microsoft server applications.

For more information, consult the brochure Lenovo Operational Support Services for Data Centers.

Lenovo Managed Services

Achieve peak efficiency, high security, and minimal disruption with Lenovo's always-on Managed Services. Our real-time monitoring, 24x7 incident response, and problem resolution ensure your infrastructure operates seamlessly. With quarterly health checks for ongoing optimization and innovation, Lenovo's remote active monitoring boosts end-user experience and productivity by keeping your data center's hardware performing at its best.

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.

Lenovo Sustainability Services

• Asset Recovery Services

  Lenovo Asset Recovery Services (ARS) provides a secure, seamless solution for managing end-of-life IT assets, ensuring data is safely sanitized while contributing to a more circular IT lifecycle. By maximizing the reuse or responsible recycling of devices, ARS helps businesses meet sustainability goals while recovering potential value from their retired equipment. For more information, see the Asset Recovery Services offering page.

• CO2 Offset Services

  Lenovo’s CO2 Offset Services offer a simple and transparent way for businesses to take tangible action on their IT footprint. By integrating CO2 offsets directly into device purchases, customers can easily support verified climate projects and track their contributions, making meaningful progress toward their sustainability goals without added complexity.

• Lenovo Certified Refurbished

  Lenovo Certified Refurbished offers a cost-effective way to support IT circularity without compromising on quality and performance. Each device undergoes rigorous testing and certification, ensuring reliable performance and extending its lifecycle. With Lenovo’s trusted certification, you gain peace of mind while making a more sustainable IT choice.

Lenovo TruScale XaaS is your set of flexible IT services that makes everything easier. Streamline IT procurement, simplify infrastructure and device management, and pay only for what you use – so your business is free to grow and go anywhere.

Lenovo TruScale is  the unified solution that gives you simplified access to:

• The industry’s broadest portfolio – from pocket to cloud – all delivered as a service
• A single-contract framework for full visibility and accountability
• The global scale to rapidly and securely build teams from anywhere
• Flexible fixed and metered pay-as-you-go models with minimal upfront cost
• The growth-driving combination of hardware, software, infrastructure, and solutions – all from one single provider with one point of accountability.

For information about Lenovo TruScale offerings that are available in your region, contact your local Lenovo sales representative or business partner.

The DB820S FC SAN Switch conforms to the following regulations which can be found in the Hardware Installation Guide, available from the following web page:

https://www.broadcom.com/products/fibre-channel-networking/switches/g820-switch

For end-to-end storage configuration support, refer to the Lenovo Storage Interoperation Center (LSIC):
https://datacentersupport.lenovo.com/us/en/lsic

Use the LSIC to select the known components of your configuration and then get a list all other supported combinations, with details about supported hardware, firmware, operating systems, and drivers, plus any additional configuration notes. View results on screen or export them to Excel.

Lenovo offers the ThinkSystem DE Series, ThinkSystem DG Series, ThinkSystem DM Series and ThinkSystem DS Series external storage systems for high-performance storage. See the DE Series, DG 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 DS Series Storage
  https://lenovopress.lenovo.com/storage/thinksystem/ds-series
• 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 that can be used in Lenovo FC SAN solutions.

Note: Information provided in this section is for ordering reference purposes only. End-to-end LTO Ultrium configuration support for a particular tape backup unit must be verified through the System Storage Interoperation Center (SSIC):
http://www.ibm.com/systems/support/storage/ssic

For more information, see the list of Product Guides in the Tape Autoloaders and Libraries category:
https://lenovopress.com/storage/tape/library

The following table lists the supported rack cabinets.

For specifications about these racks, see the Lenovo Rack Cabinet Reference, available from:
https://lenovopress.com/lp1287-lenovo-rack-cabinet-reference

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

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