Operational Characteristics of SSDs in Enterprise Storage Systems: A Large-Scale Field Study


Stathis Maneas and Kaveh Mahdaviani, University of Toronto; Tim Emami, NetApp; Bianca Schroeder, University of Toronto


As we increasingly rely on SSDs for our storage needs, it is important to understand their operational characteristics in the field, in particular since they vary from HDDs. This includes operational aspects, such as the level of write amplification experienced by SSDs in production systems and how it is affected by various factors; the effectiveness of wear leveling; or the rate at which drives in the field use up their program-erase (PE) cycle limit and what that means for the transition to future generations of flash with lower endurance. This paper presents the first large-scale field study of key operational characteristics of SSDs in production use based on a large population of enterprise storage systems covering almost 2 million SSDs of a major storage vendor (NetApp).

Open Access Media

USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.

This content is available to:

@inproceedings {277838,
author = {Stathis Maneas and Kaveh Mahdaviani and Tim Emami and Bianca Schroeder},
title = {Operational Characteristics of {SSDs} in Enterprise Storage Systems: A {Large-Scale} Field Study},
booktitle = {20th USENIX Conference on File and Storage Technologies (FAST 22)},
year = {2022},
isbn = {978-1-939133-26-7},
address = {Santa Clara, CA},
pages = {165--180},
url = {https://www.usenix.org/conference/fast22/presentation/maneas},
publisher = {USENIX Association},
month = feb

Presentation Video