Lenovo 4XF7A84049 Brocade FC32-48 PT Blade 32Gbps SWL Fibre Channel Blade

Overview

The Lenovo 4XF7A84049 is a 48-port, 32Gbps Fibre Channel blade module in the Brocade FC32 family, designed for high-density SAN fabric deployments inside Lenovo-compatible director-class chassis. The 32G SWL designation indicates short-wavelength optical transceivers — suited for OM3 or OM4 multimode fibre runs typical of intra-datacenter SAN fabrics — while the PT (Port Trunking) capability lets you aggregate multiple inter-switch links into a single logical trunk, increasing throughput and eliminating single-link bottlenecks between fabric switches. At 1.00 lb, the blade slots into the director chassis without adding meaningful chassis weight.

The UNSPSC code 43222608 classifies this as a Fibre Channel controller — confirm chassis and slot compatibility with your Lenovo director platform before ordering. Pair this blade with your existing Lenovo storage networking infrastructure for consistent vendor support across your SAN fabric.

Key Features

• 48 SWL Ports at 32Gbps: High port density means fewer blades required to connect large numbers of servers and storage targets — directly reducing chassis slot consumption in high-scale SAN environments.
• Short-Wavelength (SWL) Optics: SWL transceivers run on OM3/OM4 multimode fibre — the cabling already installed in most datacenters — so you typically avoid rerunning cable to deploy this blade.
• Port Trunking (PT): Aggregate inter-switch links to multiply effective ISL bandwidth and remove single-link failure points between fabric switches, improving both throughput and resilience in core-to-edge SAN topologies.
• 32Gbps Per-Port Speed: Full 32G line-rate keeps pace with NVMe-oF and all-flash array workloads where 16G-generation blades have become a bottleneck — a meaningful consideration when refreshing aging SAN fabric.

Integration and Compatibility

This blade is designed for use in Lenovo director-class Fibre Channel chassis that accept the FC32 blade form factor. Confirm slot compatibility, supported firmware versions, and chassis power envelope with your platform documentation before installation. As part of the broader storage networking portfolio, this blade integrates with standard Brocade Fabric OS management tools for zoning, trunking configuration, and performance monitoring. For full SAN fabric planning, consult your Fibre Channel switch documentation to verify ISL and F-port allocations across chassis.

Frequently Asked Questions

Q: What chassis is the Lenovo 4XF7A84049 compatible with?

A: The 4XF7A84049 is a Brocade FC32-48 PT blade designed for Lenovo director-class Fibre Channel chassis that accept the FC32 blade form factor. Verify specific chassis compatibility and slot requirements against your platform's technical documentation before ordering.

Q: What type of fibre does the SWL transceiver require?

A: SWL (Short Wavelength) optics operate on OM3 or OM4 multimode fibre. This is standard intra-datacenter cabling — most enterprise datacenter installations already have compatible runs in place.

Q: What is Port Trunking (PT) and why does it matter?

A: Port Trunking lets you bundle multiple inter-switch links into a single logical connection, multiplying effective ISL bandwidth and eliminating single-link failure points. It is particularly valuable in spine-and-leaf SAN topologies where core-to-edge links carry aggregated traffic from many hosts.

Q: Is the 4XF7A84049 suitable for NVMe-oF workloads?

A: 32Gbps per-port line rate is the current generation for FC-NVMe deployments. Whether this blade is validated for FC-NVMe in your specific chassis and fabric configuration should be confirmed against Lenovo and Brocade compatibility matrices before deployment.

Q: What is the blade's weight?

A: The 4XF7A84049 weighs 1.00 lb, making it a lightweight addition to any compatible director chassis.

Eden Phillips

When I evaluate the 4XF7A84049, the combination that stands out is 48 ports at 32Gbps with Port Trunking — that is a meaningful density-and-speed pairing for any datacenter running a director-class SAN fabric under heavy all-flash or NVMe workloads. The SWL optics are a practical choice since they ride existing OM3/OM4 multimode plant rather than forcing a single-mode recabling project.

Technical Highlights:

• 48-Port Density: Consolidating 48 x 32G ports onto a single blade slot reduces the number of blades needed to fully populate a director chassis — directly lowering per-port cost and cable management complexity in high-scale SAN builds.
• 32Gbps Line Rate: Current-generation FC speed keeps host-to-storage bandwidth from becoming the constraint in all-flash environments where 16G-era fabric was previously the bottleneck.
• Port Trunking: PT-capable blades allow ISL aggregation between director switches, which matters in multi-chassis fabrics where a single 32G ISL would cap aggregate east-west throughput well below what the host-side ports can sustain.

Deployment Considerations:

• Chassis slot and power compatibility must be verified against your specific Lenovo director platform before installation — not all FC32 blades are interchangeable across every chassis generation.
• SWL optics are limited to short-distance multimode runs (typically up to 100m on OM4); if your SAN spans buildings or long conduit runs, you will need LWL or ELWL variants instead.

This blade is best positioned in a dense, intra-datacenter SAN fabric refresh — specifically where a datacenter team is moving from 16G to 32G generation hardware and needs to maintain or increase port count without adding chassis slots.