NDLI: Improving performance and lifetime of the SSD RAID-based host cache through a log-structured approach

Please wait, while we are loading the content...

Bankshot: caching slow storage in fast non-volatile memory

Improving performance and lifetime of the SSD RAID-based host cache through a log-structured approach

Log-structured cache: trading hit-rate for storage performance (and winning) in mobile devices

Phase change memory in enterprise storage systems: silver bullet or snake oil?

High performance & low latency in solid-state drives through redundancy

NVM heaps for accelerating browser-based applications

MetaData persistence using storage class memory: experiences with flash-backed DRAM

Exploring storage class memory with key value stores

Improving performance and lifetime of the SSD RAID-based host cache through a log-structured approach

Content Provider	ACM Digital Library
Author	Choi, Jongmoo Noh, Sam H. Oh, Yongseok Lee, Donghee
Abstract	This paper proposes a cost-effective and reliable SSD host cache solution that we call SRC (SSD RAID Cache). Cost-effectiveness is brought about by using multiple low-cost SSDs and reliability is enhanced through RAID-based data redundancy. RAID, however, is managed in a log-structured manner on multiple SSDs effectively eliminating the detrimental read-modify-write operations found in conventional RAID-5. Within the proposed framework, we also propose to eliminate parity blocks for stripes that are composed of clean blocks as the original data resides in primary storage. We also propose the use of destaging, instead of garbage collection, to make space in the cache when the SSD cache is full. We show that the proposed techniques have significant implications on the performance of the cache and lifetime of the SSDs that comprise the cache. Finally, we study various ways in which stripes can be formed based on data and parity block allocation policies. Our experimental results using different realistic I/O workloads show using the SRC scheme is on average 59% better than the conventional SSD cache scheme supporting RAID-5. In case of lifetime, our results show that SRC reduces the erase count of the SSD drives by an average of 47% compared to the RAID-5 scheme.
Starting Page	1
Ending Page	8
Page Count	8
File Format	PDF
ISBN	9781450324625
DOI	10.1145/2527792.2527795
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-11-03
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Lifetime Log-structured approach Destage Replacement Performance Parity Ssd raid cache Cost-effective
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in