Rep-RAID: An Integrated Approach to Optimizing Data Replication and Garbage Collection in RAID-Enabled SSDs

Li, Jun; Gerofi, Balazs; Cai, Zhenhua; Liao, Jianwei

doi:10.1145/3589610.3596274

Proceedings of the 24th ACM SIGPLAN/SIGBED International Conference on Languages, Compilers, and Tools for Embedded Systems 2023

DOI: 10.1145/3589610.3596274

|View full text |Cite

Rep-RAID: An Integrated Approach to Optimizing Data Replication and Garbage Collection in RAID-Enabled SSDs

Jun Li

Balazs Gerofi

Zhenhua Cai

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Flash-oriented Coded Storage: Research Status and Future Directions

Li,

Zhang,

Wang

2024

ACM Trans. Storage

View full text Add to dashboard Cite

Flash-based solid-state drives (SSDs) have been widely adopted in various storage systems, manifesting better performance than their forerunner HDDs. However, the characteristics of flash media post some drawbacks when deploying SSD-based storage systems. First, flash media have limited program/erase cycles, making them vulnerable to media failures. Second, SSD foreground I/Os can suffer from inconsistent performance due to interference from background operations like garbage collection (GC). The major solution to the above problems is to introduce data redundancy. Redundant data can not only detect raw bit errors and recover lost data but also enable I/O scheduling to sidestep SSDs that are under performance degradation. Compared with multi-replica, data coding is a more space-efficient way to provide redundancy. However, it is more challenging to simultaneously achieve low access latency, consistent performance and fast recovery. This paper examines the design of coded storage in existing storage systems, with a focus on flash storage systems, and how they address these challenges. The coded storage techniques are categorized into in-device coding, cross-device coding, and cross-machine coding. They are designed for different scenarios and purposes, but share some design rationales in common. For each type of coded storage, we begin by presenting the theoretical bases, followed by an overview of how existing studies address the performance and endurance issues of coded storage from a systemic perspective. Finally, we review the history of coded storage, list several key insights from existing works, and speculate some promising directions for flash-oriented coded storage systems.

show abstract

Flash-oriented Coded Storage: Research Status and Future Directions

Li,

Zhang,

Wang

2024

ACM Trans. Storage

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Rep-RAID: An Integrated Approach to Optimizing Data Replication and Garbage Collection in RAID-Enabled SSDs

Cited by 1 publication

References 33 publications

Flash-oriented Coded Storage: Research Status and Future Directions

Flash-oriented Coded Storage: Research Status and Future Directions

Contact Info

Product

Resources

About