The Definitive Guide toAI Data Centers
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DDN · DataDirect Networks

A storage vendor whose Lustre-based appliances are a standard certified hot tier in GPU-vendor reference architectures.

Current numbers

800 Gb/sBlueField-4 DPU throughput (STX storage architecture), ~6x BlueField-3 compute; WEKA/VAST/DDN platformsas of H2 2026 · register ↗
~2.75M vs ~520kmetadata IOPS: Weka vs a comparable DDN/Lustre config in IO500 measurement — the LOSF gap behind the same bandwidthas of 2025 · register ↗

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