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

Historical ISC23 List

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Ranking of all valid submissions ever received, including duplicate entries for the same storage system.
# BoF Information IO500 Repro.
Institution System · FS Type Storage Vendor Client Nodes Total Client Proc. Score BW MD
(GiB/s) (kIOP/s)
301 SC18 Clemson University Palmetto BeeGFS Dell 32 64 6.16 1.25 30.28 -
302 SC18 Clemson University ofsdev Lustre Dell 16 32 6.07 1.34 27.56 -
303 SC18 CERN Bytecollider CephFS 64 64 6.01 2.85 12.64 -
304 ISC19 Janelia Research Campus, HHMI nrs Scale out NFS Qumulo 10 320 5.95 2.59 13.69 -
305 SC18 Clemson University Palmetto BeeGFS Dell 32 256 5.79 1.05 31.92 -
306 ISC19 PGS Lustre on GCP Lustre Google 10 50 5.70 1.91 17.05 -
307 ISC20 Janelia Research Campus, HHMI VastTest Scale-out NAS Vast Data 10 620 5.68 3.67 8.80 -
308 ISC19 Janelia Research Campus, HHMI qflash Scale out NFS Qumulo 96 960 5.32 2.80 10.11 -
309 SC18 DKRZ Mistral Lustre2 Seagate 10 80 5.32 1.05 27.06 -
310 ISC21 DKRZ Mistral Lustre Seagate/Cray 10 80 5.22 1.16 23.50 -
311 SC18 Clemson University Palmetto BeeGFS Dell 16 16 5.08 2.24 11.49 -
312 ISC20 Janelia Research Campus, HHMI VastTest Scale-out NAS Vast Data 10 620 4.98 3.56 6.96 -
313 SC18 Clemson University ofsdev Lustre Dell 16 16 4.88 1.31 18.17 -
314 ISC19 Janelia Research Campus, HHMI qflash Scale out NFS Qumulo 10 120 4.46 2.12 9.35 -
315 ISC19 Queen Mary. University Of London Apocrita Spectrum Scale DDN 10 240 4.36 1.26 15.09 -
316 ISC18 SNL Serrano Spectrum Scale IBM 16 160 4.25 0.65 27.98 -
317 SC19 Janelia Research Campus, HHMI nrs Scale-out NAS Qumulo 10 760 4.19 2.88 6.11 -
318 SC18 EPCC Archer Lustre Seagate 10 80 3.70 0.77 17.84 -
319 SC19 Janelia Research Campus, HHMI nearline4 Scale-out NAS Qumulo 10 760 3.67 2.45 5.49 -
320 ISC19 JIHT RAS Desmos BeeGFS 10 60 3.55 0.51 24.88 -
321 SC18 Queen Mary, University Of London Apocrita GPFS DDN 10 240 3.44 0.87 13.56 -
322 ISC19 JIHT RAS Fisher BeeGFS 10 320 3.19 0.51 20.03 -
323 SC21 IBMDL Sandbox SpectrumScale IBM 10 0 3.17 0.61 16.57 -
324 ISC20 LNCC SDumont Lustre Cay/HPE 10 240 3.06 2.32 4.02 -
325 ISC18 STFC Jasmin/Lotus NFS Purestorage 64 128 2.33 0.26 20.93 -
326 SC18 Clemson University Palmetto OrangeFS Dell 32 32 2.31 1.93 2.77 -
327 SC18 Clemson University Palmetto OrangeFS Dell 48 48 2.15 1.80 2.57 -
328 SC18 Nemours nas6 GPFS DDN 1 2 2.06 1.39 3.04 -
329 ISC18 STFC Jasmin/Lotus NFS Purestorage 16 64 1.98 0.21 18.77 -
330 SC18 Nemours nas6 GPFS DDN 1 2 1.52 0.74 3.11 -
331 SC18 Clemson University Palmetto OrangeFS Dell 16 16 1.47 1.21 1.79 -
332 ISC23 XF_Lab XF_computer XF_Stor XF_Stor 2 128 0.58 0.33 1.03
333 SC18 Sandia National Laboratories Ghost GPFS IBM 10 100 0.31 0.05 1.85 -

Top 10 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% #301 — Palmetto (Clemson University) #302 — ofsdev (Clemson University) #303 — Bytecollider (CERN) #304 — nrs (Janelia Research Campus, HHMI) #305 — Palmetto (Clemson University) #306 — Lustre on GCP (PGS) #307 — VastTest (Janelia Research Campus, HHMI) #308 — qflash (Janelia Research Campus, HHMI) #309 — Mistral (DKRZ) #310 — Mistral (DKRZ)
  • #301 Palmetto Clemson University
  • #302 ofsdev Clemson University
  • #303 Bytecollider CERN
  • #304 nrs Janelia Research Campus, HHMI
  • #305 Palmetto Clemson University
  • #306 Lustre on GCP PGS
  • #307 VastTest Janelia Research Campus, HHMI
  • #308 qflash Janelia Research Campus, HHMI
  • #309 Mistral DKRZ
  • #310 Mistral DKRZ