Loading...

Empirical Architectural Analysis on Performance Scalability of Petascale All-Flash Storage Systems

Ajdari, M ; Sharif University of Technology | 2024

51 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/LCA.2024.3418874
  3. Publisher: 2024
  4. Abstract:
  5. In this paper, we first analyze a real storage system consisting of 72 SSDs utilizing either Hardware RAID (HW-RAID) or Software RAID (SW-RAID), and show that SW-RAID is up to 7× faster. We then reveal that with an increasing number of SSDs, the limited I/O parallelism in SAS controllers and multi-enclosure handshaking overheads cause a significant performance drop, minimizing the total I/O Per Second (IOPS) of a 144-SSD system to less than a single SSD. Second, we disclose the most important architectural parameters that affect a large-scale storage system. Third, we propose a framework that models a large-scale storage system and estimates the system IOPS and system resource usage for various architectures. We verify our framework against a real system and show its high accuracy. Lastly, we analyze a use case of a 240-SSD system and reveal how our framework guides architects in storage system scaling. © 2002-2011 IEEE
  6. Keywords:
  7. Performance ; RAID ; Parallel architectures ; Scalability ; Synthetic apertures ; Backplanes ; Data storage ; Hardware ; Large-scale storage systems ; Parallel processing ; Petascale ; Solid-state drive ; Storage systems ; Enclosures
  8. Source: IEEE Computer Architecture Letters ; Volume 23, Issue 2 , 2024 , Pages 158-161 ; 15566056 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/10571374