Work

ZRAID: Leveraging Zone Random Write Area (ZRWA) for Alleviating Partial Parity Tax in ZNS RAID

Year: 2025

Type: conference-paper

Abstract: The Zoned Namespace (ZNS) SSD is an innovative technology that aims to mitigate the block interface tax associated with conventional SSDs. However, constructing a RAID system using ZNS SSDs presents a significant challenge in managing partial parity for incomplete stripes. Previous research permanently logs partial parity in a limited number of reserved zones, which not only creates bottlenecks in throughput but also exacerbates write amplification, thereby reducing the device's lifetime. We refer to these inefficiencies as the partial parity tax.

Source: ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS)

DOI: 10.1145/3669940.3707248

Authors: Minwook Kim, Seongyeop Jeong, Jin-Soo Kim

Institution: Seoul National University

Language: English

Topic: Advanced Data Storage Technologies

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4407217996

FWCI: 7.728

Cites: 17

Cited by: 6

Related to: 10