Submit your IO500 results for the upcoming ISC'26 list, which will be presented at our BOF. See the Call for Submissions for details.

Production ISC23 List

Ranking of production system submissions. This is a subset of the Full List of submissions that meet additional criteria for redundancy and usage, showing only one highest-scoring result per storage system.
# BoF Information IO500 Repro.
Institution System · FS Type Storage Vendor Client Nodes Total Client Proc. Score BW MD
(GiB/s) (kIOP/s)
1 ISC23 LRZ SuperMUC-NG-Phase2-EC DAOS Lenovo 24 2,688 1,386.41 336.35 5,714.63
2 ISC23 EuroHPC-CINECA Leonardo EXAScaler DDN 2,000 16,000 648.96 807.12 521.79
3 ISC22 China Telecom Research Institute CTPAI DAOS CTCLOUD 10 200 187.84 25.29 1,395.01 -
4 ISC23 Imperial College London Imperial - hx cluster Spectrum scale Lenovo 32 512 119.56 44.63 320.31
5 ISC23 Arizona State University Sol BeeGFS Dell 10 160 16.48 4.40 61.76

Top 5 systems compared

Each axis is scaled to the highest value among these systems — 100% marks the leader on that dimension. Click a system below to toggle it.

Score 100% Bandwidth 100% Metadata 100% Clients 100% Processes 100% #1 — SuperMUC-NG-Phase2-EC (LRZ) #2 — Leonardo (EuroHPC-CINECA) #3 — CTPAI (China Telecom Research Institute) #4 — Imperial - hx cluster (Imperial College London) #5 — Sol (Arizona State University)
  • #1 SuperMUC-NG-Phase2-EC LRZ
  • #2 Leonardo EuroHPC-CINECA
  • #3 CTPAI China Telecom Research Institute
  • #4 Imperial - hx cluster Imperial College London
  • #5 Sol Arizona State University