Steve Hetzler | High Capacity Storage Solutions Architect
Micron
Steve Hetzler joined Micron Technology in 2025 as the High Capacity Storage Solutions Architect. Steve has spent most of his career working on storage architecture. Before joining Micron, he spent 4+ years at Meta as a technical on backend and archival storage. Prior to his time at Meta, he was at IBM Research for over 30 years, 23 as an IBM Fellow. While at IBM he initiated and named iSCSI, and invented split field and headerless recording for HDDs. He has over 100 patents in data storage and related areas. He has a Ph.D. in Applied Physics from CalTech, where his research focused on III-V and II-VI semiconductors.
Appearances:
Future of Memory and Storage - Day 2 @ 08:55
QLC vs. HDD: IO size matters
While the media cost of QLC is still significantly higher than that of HDD, the cost difference at the system level is smaller. One factor often overlooked in the system level comparison is the cost associated with servicing IO. HDD and QLC have very different levels of performance as a function of IO size, and this difference can measurably reduce the cost of QLC.In this talk we will show the throughput characteristics of both technologies as a function of IO size. IO size histograms will be shown and combined with the throughput curves to compute the storage capacity required to support the histograms. The results will quantify the reduction in QLC cost due to the difference in performance vs. IO size for QLC and HDD.
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