Loading...

Evaluating Availability of Data Storage Systems and Its Impact on Total Cost of Ownership

Kishani Farahani, Mostafa | 2018

695 Viewed
  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 51827 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Asadi, Hossein
  7. Abstract:
  8. From small businesses to large organizations and corporations, data is the most valuable and most vulnerable asset. The exponential explosion of digital data, known as Big Data, has evolved data storage industry and mandates new solutions for handling dependability and performance demands. Now Exa-scale datacenters employ millions of storage media that translates to multiple failures per hour. The storage design problem gets more dimensions by the emerge of Non-Volatile Memories (NVMs) and Solid-State Drives (SSDs) that have limited endurance. Both industry and academy continuously struggle to evaluate and improve the dependability of data storage systems and minimize the chance of data unavailability and data loss. Data unavailability and data loss should be evaluated from end-user point of view and reported by meaningful metrics, examining a plenary of workloads and system configurations. In this thesis, we evaluate data unavailability and data loss of storage systems in the end-user side and investigate its impact on Total Cost of Ownership (TCO). We mainly focus on the failures of disk subsystem, constructed by SSDs or Hard Disk Drives (HDDs), and storage controllers. We also propose two new metrics for evaluating the vulnerability and availability of storage systems. Finally, we propose a model for TCO of data storage systems by considering the costs imposed by data unavailability and data loss
  9. Keywords:
  10. Data Storage ; Availability ; Data Miss ; Soft Error ; Ownership Total Cost

 Digital Object List

 Bookmark

...see more