IBM Summit - 2.4x more storage nodes, 3.2x more NVMe Drives, 12.5x more memory, 5% faster
I agree with Anonymous coward #1, we need to have more transparency in the systems used so you can get a side by side cost estimate. Anonymous coward #2, you are partially correct, each node has both HDD and NVMe drives. According to IBM's literature the Summit Storage System Configuration is utilizing 2 NVMe drives in every enclosure in the storage configuration. It was a bit of a mystery hunt to find the system specification but here is a link to the IBM sponsored paper that outlines its build. I have taken that data and put is side by side with WekaIO and I encourage you to check it out because the paper talks extensively about how they are using NVMe to improve small file I/O performance. Page 6 outlines the storage node build. They have 77 storage nodes total compared to WekaIO's 32 node system.
https://public.dhe.ibm.com/common/ssi/ecm/75/en/75017375usen/sci-ibm1804-spectrum-scale-perf-v020_75017375USEN.pdf
Summary:
IBM Summit number of nodes 77, WekaIO 32 (2.4x more nodes used by IBM)
IBM Summit memory per node 1,000GB, WekaIO 192 (5.2x more memory per node use by IBM)
****** Total IBM cluster memory used 77TB, WekaIO 6.14TB (12.5x more memory overall used by IBM)
IBM Summit NVMe drives per node 8 (2 per enclosure x 4 enclosures per node), WekaIO 6 (1.3x more NVMe used by IBM)
****** Total IBM cluster NVMe drives used 616, WekaIO 192 (3.2x more NVMe used by IBM)
Biting the hand that feeds IT
