Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit

The Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit is a purpose-built expansion module that unlocks high-speed NVMe storage right behind the server’s rear chassis. This backplane is engineered for enterprise workloads where speed and reliability matter most—think databases, real-time analytics, virtualization, and latency-sensitive applications. By adding two 2.5-inch NVMe bays at the rear, this kit helps you maximize I/O throughput, reduce storage bottlenecks, and maintain clean airflow within densely packed data centers. Built to integrate seamlessly with the ThinkSystem SR645 platform, it delivers the performance quality and serviceability Lenovo customers expect from an enterprise-grade storage upgrade.

• Two 2.5-inch NVMe drive bays provide direct, high-performance storage expansion using the NVMe protocol. This enables ultra-fast read and write operations essential for data-intensive workloads and rapid data access.
• Rear-mounted backplane design optimizes airflow and simplifies cable management in compact or crowded data-center racks, helping maintain thermals while preserving system accessibility.
• Hot-swappable drives allow you to replace or upgrade NVMe drives without powering down the server, minimizing downtime and keeping critical workloads online during maintenance.
• Seamless ThinkSystem compatibility—designed to work with the Lenovo ThinkSystem SR645 servers, ensuring consistent drive mapping, reliable boot behavior, and smooth integration with Lenovo management tools.
• Enterprise-grade reliability and serviceability—built to endure the rigors of data-center environments with robust connectors and secure mounting, backed by Lenovo’s support ecosystem for ongoing firmware updates and hardware assistance.

Technical Details of Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit

• Drive bays: 2 x 2.5" NVMe rear backplane for enterprise NVMe SSDs, enabling fast, responsive storage expansion within the SR645 platform.
• Backplane design: Rear-mounted expansion backplane specifically designed for Lenovo ThinkSystem SR645 chassis, supporting efficient use of remaining internal space and optimized airflow.
• Interface and data path: PCIe-based NVMe data path that leverages the server’s PCIe lanes for high-throughput, low-latency storage access aligned with modern NVMe drives.
• Compatibility: Engineered for compatibility with Lenovo ThinkSystem SR645 servers; installation follows Lenovo chassis guidelines to ensure proper drive mapping and system recognition.
• Maintenance model: Hot-swappable drive capability enables non-disruptive maintenance to drive bays, reducing downtime for routine upgrades or repairs.
• Physical footprint: Rear backplane module sized to fit SR645 chassis rear drive area, designed to integrate with existing drive cages and mounting hardware for a clean, serviceable installation.

how to install Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit

• Power down the server, unplug from all power sources, and disconnect any connected peripherals to ensure a safe installation environment.
• Remove the server enclosure or access panels to reach the rear drive area, following Lenovo’s service guide for your SR645 generation.
• If an existing backplane or drive cage is present, carefully detach it according to the chassis documentation, keeping track of mounting screws and brackets.
• Align the Rear 2x2.5" NVMe Backplane with the chassis rear mounting points and seating areas. Secure the backplane using the appropriate screws or latch mechanisms provided with the kit or the chassis.
• Connect the backplane to the system’s NVMe/PCIe connectors as specified in the SR645 maintenance guide. Ensure all connectors are fully seated to establish a reliable data path to the motherboard/CPU PCIe controller.
• Install two 2.5-inch NVMe drives into the backplane’s drive bays, using the standard drive trays or hot-swap caddies approved for your SR645 configuration. Confirm each drive is firmly seated and secured.
• Reinstall any drive cages or cover panels, reassemble the chassis, reconnect power and cables, and boot the server. Enter the system BIOS or UEFI to verify the new NVMe backplane and drives are detected and correctly mapped.
• Once the OS loads, use Lenovo management tools or your standard storage admin tools to format, partition, and configure the new NVMe storage as needed for your workloads.

Frequently asked questions

• What is the Lenovo ThinkSystem SR645 Rear 2x2.5" NVMe Backplane Option Kit? A dedicated expansion module that adds two rear-mounted 2.5-inch NVMe drive bays to a Lenovo ThinkSystem SR645 server, delivering enhanced storage performance and easier maintenance for enterprise workloads.
• What drives are supported? The kit supports standard 2.5-inch NVMe SSDs that are compatible with the SR645 chassis and drive caging. Always consult Lenovo’s official compatibility guides for approved drive models and firmware requirements before purchasing.
• Is the backplane hot-swappable? Yes. The design supports hot-swappable NVMe drives, enabling drive replacement or upgrades without powering down the server, which helps maximize uptime for critical workloads.
• Is this backplane compatible with all generations of the SR645? The kit is designed to work with ThinkSystem SR645 servers, but always verify your server’s exact generation, firmware levels, and chassis configuration against Lenovo’s product documentation to ensure full compatibility.
• Do I need any special tools or cables? Installation typically uses standard server mounting hardware and the backplane’s integrated connectors. Some setups may require specific cables or adapters provided by Lenovo for your chassis; refer to the installation guide for precise requirements.
• How does this backplane affect system performance? By providing direct, high-speed NVMe connections at the rear of the chassis, the backplane can reduce controller contention and latency for NVMe workloads, improving throughput for I/O-intensive applications while maintaining efficient airflow.