Title: End-to-end SLA management in federated clouds

Authors: Asma Al Falasi; Mohamed Adel Serhani; Younes Hamdouch

Addresses: Department of Urban Planning and Municipalities, Al Ain Municipality, Al Ain, United Arab Emirates ' College of Information Technology, UAE University, Al Ain, United Arab Emirates ' College of Information Technology, UAE University, Al Ain, United Arab Emirates

Abstract: Cloud federation is a concept that collectively combines segregated cloud services to create an extended pool of resources for clouds to competently deliver their promised level of services. This paper studies the governing aspects of cloud federation through collaborative networking. It proposes a network of federated clouds, CloudLend, that creates a platform for cloud providers to collaborate, and for customers to expand their service selections. We design a service level agreement (SLA) management model to govern and administer the relationships between different cloud services. We define a multi-level SLA specification model to describe QoS terms, in addition to a game theory-based automated SLA negotiation model. We define an adaptive agent-based SLA monitoring model. Formal verification proved that our framework assures customers with maximum optimised QoS guarantees, in addition to supporting cloud providers to make informed resource utilisation decisions. Additionally, simulation results demonstrate the effectiveness of our SLA management model.

Keywords: cloud computing; federated clouds; SLA management; game theory; QoS requirements.

DOI: 10.1504/IJCC.2021.10041442

International Journal of Cloud Computing, 2021 Vol.10 No.3, pp.179 - 206

Received: 17 Jan 2019
Accepted: 29 Jul 2019

Published online: 24 Sep 2021 *

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