[Zurück]

I. Brandic, V. Emeakaroha, M. Maurer, S. Dustdar, S. Acs, A. Kertesz, G. Kecskemeti:
"LAYSI: A Layered Approach for SLA-Violation Propagation in Self-manageable Cloud Infrastructures";
Vortrag: The First IEEE International Workshop on Emerging Applications for Cloud Computing (CloudApp 2010), in conjunction with COMPSAC 2010, Seoul, South Korea; 19.07.2010 - 23.07.2010; in: "Proceedings of the 34th Annual IEEE International Computer Software and Applications Conference (COMPSAC 2010) Volume II: Workshops", S. Ahamed, D. Bae, S. Cha, C. Chang, R. Subramanyan, E. Wong, H. Yang (Hrg.); IEEE Computer Society, (2010), ISBN: 978-0-7695-4105-1; S. 365 - 370.

Cloud computing represents a promising computing
paradigm where computing resources have to be allocated
to software for their execution. Self-manageable Cloud infrastructures
are required to achieve that level of flexibility
on one hand, and to comply to users´ requirements specified
by means of Service Level Agreements (SLAs) on the
other. Such infrastructures should automatically respond to
changing component, workload, and environmental conditions
minimizing user interactions with the system and preventing
violations of agreed SLAs. However, identification of sources
responsible for the possible SLA violation and the decision
about the reactive actions necessary to prevent SLA violation is
far from trivial. First, in this paper we present a novel approach
for mapping low-level resource metrics to SLA parameters
necessary for the identification of failure sources. Second,
we devise a layered Cloud architecture for the bottom-up
propagation of failures to the layer, which can react to sensed
SLA violation threats. Moreover, we present a communication
model for the propagation of SLA violation threats to the
appropriate layer of the Cloud infrastructure, which includes
negotiators, brokers, and automatic service deployer.

Cloud Computing; SLA management; autonomic computing;

http://dx.doi.org/10.1109/COMPSACW.2010.70

Projektleitung Ivona Brandic:
Foundations of Self-governing ICT Infrastructures

Projektleitung Schahram Dustdar:
S-Cube