DF-R1Shipping

Training Rack.

Feed multi-GPU training clusters with terabytes-per-second of dataset throughput. Extend host memory with a hybrid tier. Watch every joule from a single console.

AT A GLANCE

Training Rack — what you get.

A single Datafabrix DF-R1 rack, delivered as one purchase order, installed as one unit, supported as one system.

Mission
Multi-GPU LLM and vision-model training clusters
Form factor
42U · full rack · 30 kW nominal · N+1 PSU
Workload profile
LLM training · Vision-model training · Foundation-model pre-training · Multi-modal training · RLHF fine-tuning
Target customer
AI labs, hyperscalers, regulated AI operators, top-tier universities, LLM foundation-model builders
KPIS

The numbers that matter.

The specific metrics our customers ask about first — and where this rack is engineered to win.

Storage throughput to GPUs
≥ 1 TB/s aggregate
GPU-to-NVMe latency
Sub-microsecond across fabric
Memory tier expansion
Up to 4 × host DRAM capacity
DCIM telemetry cadence
1-second resolution, all endpoints
BILL OF MATERIALS

Every layer of the rack, itemised.

Merchant silicon is called out explicitly. Datafabrix engineering is called out explicitly. No hand-wave categories.

Layer Component Notes
Compute 8 × GPU host servers · Intel Xeon Scalable · dual-socket GPU hosts + Datafabrix DF-X Xeon cards for control plane
Fabric 2 × Datafabrix PCIe Gen4 Fabric Backplane (DF-B4) Tier-1 US PCIe Gen4 switch silicon inside a Datafabrix backplane
AI storage AI Storage Expansion (DF-S01) · 24 × NVMe Native PCIe endpoints across the fabric — GPUDirect Storage ready
GPU storage GPU Storage Infrastructure (DF-S06) Direct GPU-to-NVMe path — bypasses CPU I/O staging
Memory tier Hybrid Memory Expansion (DF-S04) · CXL-ready Extends host DRAM with fabric-attached memory
DCIM All 8 DCIM modules pre-instrumented Guardian · Thermal · StorageOS · Insight · Twin · Cloud · Vision · Conventional DCIM
Networking Front-end 400 GbE / IB (customer-selected) InfiniBand HDR/NDR or 400 GbE — customer chooses at order time
Cooling Rear-door heat exchanger ready · air-cooled default Liquid-cooled variant available for >40 kW density
WHY THIS RACK

The problems this rack addresses.

Feeding GPUs is now the bottleneck

A GPU that spends 40% of its time waiting on data is a GPU you paid twice for. This rack was engineered to make that ratio 5% instead of 40% — with a PCIe fabric-attached storage tier that streams datasets at bus-native throughput.

Memory walls kill big training runs

Large models spill working sets past socket-DIMM limits. The hybrid memory tier lets your training framework use fabric-attached memory as a native NUMA node — training runs that used to swap or crash just run.

Every training rack needs DCIM

AI training racks run hot, draw a lot of power, and fail in expensive ways. Ours ships with eight DCIM modules already talking to every device — you know your PUE, your hot spots, and your predicted-failure windows from the first power-on.

One vendor to escalate to

When a training job crashes at 3 a.m. and you cannot tell if it was the GPU, the NVMe, or the fabric — there is one phone number, one support contract, one team accountable. Not eight.

WHERE IT'S DEPLOYED

Four workloads. One rack.

LLM foundation-model training

Pre-train 7B–70B parameter models on your own data. Fabric-attached dataset tier keeps GPUs at >90% utilisation.

Vision-model training

Sustain millions of tiny reads across image classification, segmentation, and detection workloads.

RLHF and fine-tuning

Iterate on production models with a hot dataset tier and a warm checkpoint tier on the same fabric.

Multi-modal training

Text + image + audio + video workloads pushed through a single fabric — no protocol translations.

FROM ORDER TO POWER-ON

From order to power-on. In weeks.

Our delivery discipline is the single biggest reason customers pick us over DIY assembly or a locked AI system. Here is what the timeline actually looks like.

01

Discovery & quote

One call to align on workload, site, and timeline. Written quote with BOM, power/cooling profile, and delivery date inside one business week.

02

Build & validate

Rack assembled and validated at our integration facility. Firmware loaded. DCIM modules provisioned. Burn-in tested against the specific workload class.

03

Ship & install

Rack ships fully assembled. On-site installation by our team or a certified partner. Cabled, powered, network-integrated, DCIM streaming to your operators.

04

Power-on & handover

Workload deployed on the rack. Acceptance tests. Handover to your operations team, with our engineering on standby for the first 90 days.

WHAT'S INSIDE THIS RACK

The solutions inside this rack.

Each Datafabrix rack is a curated combination of solutions. Below are the solutions that ship inside this rack. Click any card for the block diagram, connection topology, and per-subsystem specs.

READY FOR YOUR FIRST DF-R1

Let's design your first training rack.

Tell us your workload, your site, and your timeline. We will respond within one business day.