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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Investigations of an SLA Support System for Cloud Computing (SLACC)
Organization Unit
Authors
  • Guilherme Sperb Machado
  • Burkhard Stiller
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Praxis der Informationsverarbeitung und Kommunikation
Publisher Walter de Gruyter
Geographical Reach international
ISSN 0930-5157 (P) 1865-8342 (E)
Volume 34
Number 2
Page Range 80 - 86
Date 2011
Abstract Text Cloud Providers (CP) and Cloud Users (CU) need to agree on a set of parameters expressed through Service Level Agreements (SLA) for a given Cloud service. However, even with the existence of many CPs in the market, it is still impossible today to see CPs who guarantee, or at least offer, an SLA specification tailored to CU's interests: not just offering percentage of availability, but also guaranteeing, for example, specific performance parameters for a certain Cloud application. Due to (1) the huge size of CPs' IT infrastructures and (2) the high complexity with multiple inter-dependencies of resources (physical or virtual), the estimation of specific SLA parameters to compose Service Level Objectives (SLOs) with trustful Key Performance Indicators (KPIs) tends to be inaccurate. This paper investigates an SLA Support System for CC (SLACC) which aims to estimate in a formalized methodology – based on available Cloud Computing infrastructure parameters – what CPs will be able to offer/accept as SLOs or KPIs and, as a consequence, which increasing levels of SLA specificity for their customers can be reached.
Digital Object Identifier 10.1515/piko.2011.014
Other Identification Number merlin-id:5107
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