About
As HDD capacities reach tens of terabytes while per drive IOPS remain largely unchanged, conventional SDS designs often hit IOPS limits before achieving full sequential bandwidth. This imbalance frequently leads operators to choose smaller disks in an attempt to balance capacity and performance. Leil Storage addresses this challenge with a sequential access model that aligns I/O patterns with the natural behavior of HDDs, making the approach truly HDD native. This enables sustained maximum throughput on high capacity CMR and HM-SMR drives alike. Using SaunaFS as a reference, we describe the architectural changes required to meet HM-SMR constraints, including zone appends, zone cleaning, and the elimination of in place rewrites, while preserving both performance and reliability.
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The talk
Credits and licence
- Institution
- CERN
- Speaker
- Piotr Modrzyk
- Year
- 2026
- Language
- English
- Subjects
- Computer science
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed