International Journal of Mathematical, Engineering and Management Sciences

ISSN: 2455-7749

Survivability and Vulnerability Analysis of Cloud RAID Systems under Disk Faults and Attacks

Qisi Liu
Department of Electrical and Computer Engineering, University of Massachusetts, Dartmouth, MA, USA.

Liudong Xing
Department of Electrical and Computer Engineering, University of Massachusetts, Dartmouth, MA, USA.


Received on May 14, 2020
Accepted on July 01, 2020


In this paper we model and analyze survivability and vulnerability of a cloud RAID (Redundant Array of Independent Disks) storage system subject to disk faults and cyber-attacks. The cloud RAID survivability is concerned with the system’s ability to function correctly even under the circumstance of hazardous behaviors including disk failures and malicious attacks. The cloud RAID invulnerability is concerned with the system’s ability to function correctly while occupying some state immune to malicious attacks. A continuous-time Markov chains-based method is suggested to perform the disk level survivability and invulnerability analysis. Combinatorial methods are then presented for the cloud RAID system level analysis, which can accommodate both homogeneous (based on binomial coefficients) and heterogeneous (based on multi-valued decision diagrams) disks. A detailed case study on a cloud RAID 5 system is conducted to illustrate the application of the proposed methods. Impacts of different parameters on the disk and system survivability and invulnerability are also investigated through numerical analysis.

Keywords- Cloud storage system, Cyberattack, Disk fault, Survivability, Vulnerability.


Liu, Q., & Xing, L. (2021). Survivability and Vulnerability Analysis of Cloud RAID Systems under Disk Faults and Attacks. International Journal of Mathematical, Engineering and Management Sciences, 6(1), 15-29.

Conflict of Interest

The authors confirm that there is no conflict of interest to declare for this publication.


This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The authors would like to thank the editor and anonymous reviewers for their comments that help improve the quality of this work.


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