• Lenovo ThinkSystem DB720S 1U Gen 7 Fibre Channel SAN Switch – 24–64 Port Autonomous Q-Flex with 64 Gbps Performance

    Keywords

    DB720S, Gen 7 Fibre Channel, autonomous SAN, Q-Flex ports, 64 Gbps, NVMe over FC, Fabric Vision, self-healing, low latency

    Description

    The Lenovo ThinkSystem DB720S is a Gen 7 Fibre Channel SAN switch delivering up to 64 Gbps per port in a compact 1 U form factor, designed for maximum flexibility and ease of use.

    With “pay-as-you-grow” scalability, you can start with 24 SFP+ ports and license increments of 8 or 16 ports up to 64 total, enabling smooth expansion without chassis swaps.

    Based on Brocade Gen 7 technology, the DB720S provides 50% lower latency than its predecessor (≤460 ns) and up to 4.096 Tb/s aggregate bandwidth to meet the demands of NVMe flash environments.

    Key Features

    • Gen 7 Fibre Channel ASIC: 24–64 ports, 64 Gbps per port, 50% latency reduction vs Gen 6 (≤460 ns).
    • Autonomous SAN capabilities: self-learning, self-optimizing, self-healing with Fabric Vision analytics.
    • “Pay-as-you-grow” Ports on Demand: enable 8- or 16-port increments up to 64 ports.
    • Supports NVMe over Fibre Channel for seamless transition to next-gen flash arrays.
    • High aggregate bandwidth: 4.096 Tb/s fabric capacity.

    Configuration

    SpecificationDetails
    ModelDB720S Gen 7
    Form Factor1 U rack-mount; rear-to-front or front-to-back airflow
    Active Ports24 SFP+ standard; up to 64 via PoD licenses (increments of 8/16).
    Port Bandwidth8/16/32/64 Gbps auto-sensing, 64 Gbps Q-Flex options
    Aggregate Bandwidth4.096 Tb/s
    Latency≤460 ns per hop (including FEC)
    Fabric ServicesNVMe-FC, Trunking, Congestion Notification, Traffic Optimizer
    AutomationREST APIs, Fabric Vision® with analytics
    PowerDual hot-swap PSUs, integrated fans
    Warranty3-year hardware & firmware (upgrades available)

    Compatibility

    Certified with leading storage arrays (Dell EMC PowerStore/Unity, NetApp AFF/ONTAP, HPE 3PAR, IBM FlashSystem) and integrates with VMware vSphere, Microsoft Hyper-V, OpenStack, and major replication/backup solutions.

    Usage Scenarios

    In flash-intensive data centers, deploy DB720S to leverage NVMe over FC for ultra-low latency and high IOPS, enabling real-time analytics and high-frequency trading environments.

    For multi-site replication, its in-flight security and congestion notification ensure reliable, high-throughput ISLs over long distances.

    Autonomous SAN features automate routine tasks and accelerate troubleshooting, reducing operational overhead in large-scale fabrics.

    Frequently Asked Questions

    • Q1: What latency improvements does Gen 7 offer?
      A: Gen 7 reduces port-to-port latency by 50% compared to Gen 6, achieving ≤460 ns with FEC enabled.
    • Q2: How does the PoD licensing model work?
      A: You start with 24 active ports and add 8- or 16-port PoD licenses up to 64 total without hardware changes.
    • Q3: Can DB720S run NVMe over Fibre Channel?
      A: Yes. It fully supports NVMe-FC to accelerate flash storage workloads without disrupting existing SAN architectures.
    • Q4: What autonomous features are included?
      A: Fabric Vision® provides traffic optimization, congestion notification, and self-healing fabric intelligence for resilient SAN operations.
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