--- description: CoreWeave's multi-rack Vera Rubin NVL72 cluster links hundreds of Rubin GPUs at 1.6 Tb/s, with cross-region writes and an Archive tier. title: "CoreWeave Deploys Multi-Rack Vera Rubin NVL72 Cluster: Hundreds of Rubin GPUs, 1.6 Tb/s Per GPU, and a No-Fee Archive Tier" image: https://www.storagereview.com/wp-content/uploads/2026/09/StorageReview-CoreWeave-Dell-Vera-Rubin-NVL72-racks-featured.jpg --- [![Storage Review]()](https://storagereview.com/) --- [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [![StorageReview.com](https://www.storagereview.com/wp-content/uploads/2026/07/Storage-Review-2x.png)](https://www.storagereview.com) ≡ Menu - [Home](https://www.storagereview.com/) - [Storage Reviews](https://www.storagereview.com/review) - [End User Reviews](https://www.storagereview.com/consumer) - [Enterprise Reviews](https://www.storagereview.com/enterprise) - [Ubiquiti Reviews](https://www.storagereview.com/best/ubiquiti-reviews) - [SR Merch](https://store.storagereview.com) - [Leaderboards](https://www.storagereview.com/best) - [Best Storage Arrays](https://www.storagereview.com/best/storage-arrays) - [Best Enterprise SSDs](https://www.storagereview.com/best/enterprise-ssds) - [Best Servers](https://www.storagereview.com/best/servers) - [Best Enterprise GPUs](https://www.storagereview.com/best/enterprise-gpus) - [Best Desktops for Local AI](https://www.storagereview.com/best/desktops-local-ai) - [Best Laptops for Local AI](https://www.storagereview.com/best/laptops-local-ai) - [Best Local LLM Tools](https://www.storagereview.com/best/local-llm-tools) - [Agentic AI Hardware](https://www.storagereview.com/best/agentic-ai-hardware) - [Best SSDs & Hard Drives](https://www.storagereview.com/best_drives) - [Best Portable SSDs](https://www.storagereview.com/best/portable-ssds) - [Best Business Laptops](https://www.storagereview.com/best/business-laptops) - [Best Mobile Workstations](https://www.storagereview.com/best/mobile-workstations) - [Best Desktop Workstations](https://www.storagereview.com/best/desktop-workstations) - [Best Mini PCs](https://www.storagereview.com/best/mini-pcs) - [Best Laptop Battery Life](https://www.storagereview.com/best/laptop-battery-life) - [Storage Reference Guide](https://www.storagereview.com/storage-reference-guide) - [About SR](https://www.storagereview.com/about-storagereview) - [StorageReview.com Sweepstakes Rules and Regulations](https://www.storagereview.com/storagereview-com-sweepstakes-rules-and-regulations) Search [Home](https://www.storagereview.com/) » [News](https://www.storagereview.com/news) » CoreWeave Deploys Multi-Rack Vera Rubin NVL72 Cluster: Hundreds of Rubin GPUs, 1.6 Tb/s Per GPU, and a No-Fee Archive Tier # CoreWeave Deploys Multi-Rack Vera Rubin NVL72 Cluster: Hundreds of Rubin GPUs, 1.6 Tb/s Per GPU, and a No-Fee Archive Tier by Harold Fritts on September 17, 2026 [Cloud](https://www.storagereview.com/enterprise/cloud)  ◇  [Enterprise](https://www.storagereview.com/enterprise) CoreWeave has deployed a multi-rack [NVIDIA Vera Rubin NVL72](https://www.storagereview.com/news/nvidia-gtc-2026-rubin-gpus-groq-lpus-vera-cpus-and-what-nvidia-is-building-for-trillion-parameter-inference) cluster on CoreWeave Cloud, connecting hundreds of Rubin GPUs into a single scale-out environment aimed at agentic AI workloads. Each Dell-built rack carries 72 Rubin GPUs, 36 Vera CPUs, NVLink 6 as the scale-up fabric, [BlueField-4 DPUs](https://www.storagereview.com/news/nvidia-launches-vera-rubin-architecture-at-ces-2026-the-vr-nvl72-rack), and two ConnectX-9 SuperNICs per GPU, and the racks connect over NVIDIA Spectrum-X Ethernet in a two-tier, non-blocking fabric that CoreWeave says scales to roughly 128,000 GPUs. CoreWeave is the first cloud provider to validate and bring up a single Vera Rubin NVL72 and the first to publish measured performance from one; the platform’s first peer-reviewed numbers arrived in [MLPerf Inference v6.1](https://www.storagereview.com/news/mlperf-inference-v6-1-5-7x-per-accelerator-gains-a-512-gpu-run-and-vera-rubins-first-peer-reviewed-numbers) last week, where CoreWeave’s own submission ran on GB300 NVL72. Alongside the compute, CoreWeave AI Object Storage picks up cross-region write acceleration and a new Archive tier. ![Two Dell-built NVIDIA Vera Rubin NVL72 racks cabled and powered in a CoreWeave data center, with the switch tier at top, compute trays in the middle, and power shelves at the bottom, photo courtesy of CoreWeave](https://www.storagereview.com/wp-content/uploads/2026/09/StorageReview-CoreWeave-Dell-Vera-Rubin-NVL72-racks.jpg) ## Multi-Rack NVIDIA Vera Rubin NVL72 Architecture The multi-rack build targets agentic execution paths, where serial reasoning loops and external tool calls compound data-access latency across distributed infrastructure. The two ConnectX-9 SuperNICs on each Rubin GPU provide up to 1.6 Tb/s of backend network connectivity per GPU across multi-rail, multi-plane paths, and CoreWeave describes the fabric as modular, so additional NVL72 racks join the same non-blocking topology as capacity grows. The racks run on 45°C liquid cooling. CoreWeave ties the racks together through its Mission Control software. A Rack LifeCycle Controller handles provisioning and lifecycle for each rack, hardware detection through firmware flashing, validation, power, and thermal loops; a rack-management layer called Racky controls power and infrastructure; and a programmable cooling controller called Valvey gives software-defined visibility and control over the liquid-cooling loops and environmental sensors. Racks reach production only after a staged validation pass. At the node level, that means hours of repeated GPU diagnostics, CPU-to-GPU transfer checks, interconnect and thermal validation under load, and realistic training runs. At the rack level, synchronized jobs across all 72 GPUs verify NVLink GPU-to-GPU performance, and any system landing below the expected range goes to troubleshooting. Across racks, CoreWeave runs distributed workloads, deliberately disables the NVLink paths to force traffic over the backend network, and watches the physical fabric for flaky links, rising error rates, overheating hardware, and uneven traffic, with load patterns that mimic agentic applications: sudden demand spikes, shifting concurrency, and bursts of communication. CoreWeave’s write-up on the [multi-rack bring-up](https://www.coreweave.com/blog/what-it-takes-to-bring-up-a-multi-rack-nvidia-vera-rubin-nvl72-cluster) walks through each stage and makes an interesting read. ## AI Object Storage Updates: Cross-Region Writes and Archive Tier The storage side builds on [CoreWeave AI Object Storage](https://www.storagereview.com/news/coreweave-zero-egress-migration-removes-ai-data-mobility-resistance) and its Local Object Transport Accelerator (LOTA), a caching proxy that runs on every GPU and CPU node in CoreWeave Kubernetes Service and holds objects on node-local NVMe. CoreWeave reports cached reads at up to 7 GB/s per GPU with p99 read latency more than 8x lower than reading from the bucket, and cites one frontier model provider running LOTA across more than 15,000 GPUs and 20PB of cache at a 99.7 percent hit rate. LOTA carries no additional charge. Cross-region write acceleration lets an application write to a bucket in a remote region at local latency without API or SDK changes. The application issues a standard S3 write to the LOTA endpoint; the object data lands durably in the local region while the metadata commits to the remote one; the object is immediately readable, including by the job that wrote it; and the data migrates to the remote region in the background. Applications see a single bucket namespace across regions with uniform IAM policies, lifecycle rules, and access controls, which removes the per-region forks and replication pipelines that checkpoint distribution across sites usually requires. “Our datasets span multiple regions, and we can’t afford to have our training schedule dictated by cross-region retrieval delays,” said Cécile Robert-Michon, director of internal infrastructure at Cohere. “CoreWeave AI Object Storage gives us a unified dataset footprint across regions with reads cached locally, so nothing waits on the network.” The Archive tier is a fourth storage class alongside Hot, Warm, and Cold, built for data that is written once and read rarely, such as older training checkpoints and raw datasets. It carries lower base-capacity pricing and drops retrieval, cache, per-request, early-deletion, tiering, and egress fees. CoreWeave’s suggested pattern keeps recent checkpoints in the faster tiers for immediate restarts and auto-tiers them to Archive after 60 days without a read. Both cross-region writes and the Archive tier are available now; CoreWeave’s [storage post](https://www.coreweave.com/blog/new-in-coreweave-ai-object-storage-cross-region-writes-and-archive-storage) has the configuration details. ### [CoreWeave GPU Compute Product Page](https://www.coreweave.com/products/gpu-compute) ### [CoreWeave AI Object Storage Product Page](https://www.coreweave.com/products/storage) **Engage with StorageReview** [Newsletter](https://www.storagereview.com/storage_newsletter) |  [YouTube](https://www.youtube.com/user/StorageReview "Opens in a new window") | Podcast  [iTunes](https://podcasts.apple.com/gb/podcast/storagereview-com-storage-reviews/id1060681115 "Opens in a new window")/ [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0 "Opens in a new window") |  [Instagram](https://www.instagram.com/storagereview/ "Opens in a new window") |  [Twitter](https://twitter.com/storagereview "Opens in a new window") |  [TikTok](https://www.tiktok.com/@storagereview? "Opens in a new window") |  [RSS Feed](https://www.storagereview.com/rss.xml) ![]() ### Harold Fritts I have been in the tech industry since IBM created Selectric. My background, though, is writing. So I decided to get out of the pre-sales biz and return to my roots, doing a bit of writing but still being involved in technology. Previous post: [MLPerf Inference v6.1: 5.7x Per-Accelerator Gains, a 512-GPU Run, and Vera Rubin’s First Peer-Reviewed Numbers](https://www.storagereview.com/news/mlperf-inference-v6-1-5-7x-per-accelerator-gains-a-512-gpu-run-and-vera-rubins-first-peer-reviewed-numbers) Next post: [TrueNAS Proxmox Plugin Turns Every VM Disk Request Into an Automated zvol Over iSCSI or NVMe/TCP](https://www.storagereview.com/news/truenas-proxmox-plugin-turns-every-vm-disk-request-into-an-automated-zvol-over-iscsi-or-nvme-tcp) Trusted Vendors Products and solutions from our affiliate partners: - [ ![Ubiquiti Logo](https://www.storagereview.com/wp-content/uploads/2024/11/2-1.webp) Ubiquiti ](https://store.ui.com/us/en?a_aid=StorageReview "Opens in a new window") - [ ![Newegg Logo](https://www.storagereview.com/wp-content/uploads/2025/11/newegg.webp) Newegg ](https://click.linksynergy.com/fs-bin/click?id=g5terNMDhz0&offerid=1207190.18&subid=0&type=4 "Opens in a new window") - [ ![Amazon Logo](https://www.storagereview.com/wp-content/uploads/2025/11/amazon.webp) Amazon ](https://amzn.to/4fLJUEW "Opens in a new window") Newsletter Subscribe to the StorageReview newsletter to stay up to date on the latest news and reviews. 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