Musk's Colossus DC Cluster - What's the Storage Situation?
Blocks & Files, Wednesday, November 4th, 2026
Blocks & Files examines what storage SpaceXSI's five-site Colossus 2 AI cluster near Memphis likely needs, with VAST Data and DDN as suppliers.
VAST Data and DDN supplied more than 1 EB of storage to the original Colossus datacenter for training and checkpoint data.
Colossus 2 comprises five sites in the Memphis and Southaven area, named Macrohard, Macroharder, Minihard, GunRange and Spam, with roughly 220,000 Nvidia GB200 GPUs at several training sites and about 200,000 GB300s at Spam for inference.
The cluster is expected to house around 1.2 million Blackwell GPUs by the end of 2026.
Little has been disclosed about storage, but applying the Colossus 1 GPU-to-capacity ratio suggests more than 5.2 EB, and VAST Data was reported as part of xAI's expansion.