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V. Emeakaroha, I. Brandic, M. Maurer, S. Dustdar:
"Low Level Metrics to High Level SLAs - LoM2HiS Framework: Bridging the Gap Between Monitored Metrics and SLA Parameters in Cloud Environments";
Talk: International Conference on High Performance Computing & Simulation (HPCS 2010), Caen, France; 06-28-2010 - 07-02-2010; in: "Proceedings of the 2010 International Conference on High Performance Computing & Simulation (HPCS 2010)", W. Smari, J. McIntire (ed.); IEEE, CFP1078H-PRT (2010), ISBN: 978-1-4244-6828-7; 48 - 54.

Cloud computing represents a novel on-demand
computing approach where resources are provided in
compliance to a set of predefined non-functional
properties specified and negotiated by means of Service
Level Agreements (SLAs). In order to avoid costly SLA
violations and to timely react to failures and
environmental changes, advanced SLA enactment
strategies are necessary, which include appropriate
resource-monitoring concepts. Currently, Cloud
providers tend to adopt existing monitoring tools, as for
example those from Grid environments. However, those
tools are usually restricted to locality and homogeneity of
monitored objects, are not scalable, and do not support
mapping of low-level resource metrics e.g., system up and
down time to high-level application specific SLA
parameters e.g., system availability. In this paper we
present a novel framework for managing the mappings of
the Low-level resource Metrics to High-level SLAs
(LoM2HiS framework). The LoM2HiS framework is
embedded into FoSII infrastructure, which facilitates
autonomic SLA management and enforcement. Thus, the
LoM2HiS framework detects future SLA violation threats
and can notify the enactor component to act so as to avert
the threats. We discuss the conceptual model of the
LoM2HiS framework, followed by the implementation
details. Finally, we present the first experimental results
and a proof of concept of the LoM2HiS framework.

Cloud Computing, Resource monitoring, SLA mapping, SLA enforcement, SLA management, Performance evaluation.

Project Head Ivona Brandic:
Foundations of Self-governing ICT Infrastructures