{LinnOS}: Predictability on unpredictable flash storage with a light neural network

M Hao, L Toksoz, N Li, EE Halim, H Hoffmann… - … USENIX Symposium on …, 2020 - usenix.org
This paper presents LinnOS, an operating system that leverages a light neural network for
inferring SSD performance at a very fine—per-IO—granularity and helps parallel storage …

Don't be a blockhead: zoned namespaces make work on conventional SSDs obsolete

T Stavrinos, DS Berger, E Katz-Bassett… - Proceedings of the …, 2021 - dl.acm.org
Research on flash devices almost exclusively focuses on conventional SSDs, which expose
a block interface. Industry, however, has standardized and is adopting Zoned Namespaces …

IODA: A host/device co-design for strong predictability contract on modern flash storage

H Li, ML Putra, R Shi, X Lin, GR Ganger… - Proceedings of the ACM …, 2021 - dl.acm.org
Predictable latency on flash storage is a long-pursuit goal, yet, unpredictability stays due to
the unavoidable disturbance from many well-known SSD internal activities. To combat this …

A New {LSM-style} Garbage Collection Scheme for {ZNS}{SSDs}

G Choi, K Lee, M Oh, J Choi, J Jhin, Y Oh - … on Hot Topics in Storage and …, 2020 - usenix.org
This paper explores how to design a garbage collection scheme for ZNS (Zoned
NameSpace) SSDs (Solid State Drives). We first show that a naive garbage collection based …

Performance characterization of nvme flash devices with zoned namespaces (zns)

K Doekemeijer, N Tehrany… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
The recent emergence of NVMe flash devices with Zoned Namespace support, ZNS SSDs,
represents a significant new advancement in flash storage. ZNS SSDs introduce a new …

Characterization summary of performance, reliability, and threshold voltage distribution of 3D charge-trap NAND flash memory

W Liu, F Wu, X Chen, M Zhang, Y Wang, X Lu… - ACM Transactions on …, 2022 - dl.acm.org
Solid-state drive (SSD) gradually dominates in the high-performance storage scenarios.
Three-dimension (3D) NAND flash memory owning high-storage capacity is becoming a …

Venice: Improving Solid-State Drive Parallelism at Low Cost via Conflict-Free Accesses

R Nadig, M Sadrosadati, H Mao, NM Ghiasi… - Proceedings of the 50th …, 2023 - dl.acm.org
The performance and capacity of solid-state drives (SSDs) are continuously improving to
meet the increasing demands of modern data-intensive applications. Unfortunately …

Separating data via block invalidation time inference for write amplification reduction in {Log-Structured} storage

Q Wang, J Li, PPC Lee, T Ouyang, C Shi… - 20th USENIX Conference …, 2022 - usenix.org
Log-structured storage has been widely deployed in various domains of storage systems,
yet its garbage collection incurs write amplification (WA) due to the rewrites of live data. We …

Is garbage collection overhead gone? case study of F2FS on ZNS SSDs

D Seo, PX Chen, H Li, M Bjørling, N Dutt - … of the 15th ACM Workshop on …, 2023 - dl.acm.org
The sequential write nature of ZNS SSDs makes them very well-suited for log-structured file
systems. The Flash-Friendly File System (F2FS), is one such log-structured file system and …

RackBlox: A Software-Defined Rack-Scale Storage System with Network-Storage Co-Design

B Reidys, Y Xue, D Li, B Sukhwani, WM Hwu… - Proceedings of the 29th …, 2023 - dl.acm.org
Software-defined networking (SDN) and software-defined flash (SDF) have been serving as
the backbone of modern data centers. They are managed separately to handle I/O requests …