Authors:
Yuri Demchenko
1
;
Cees de Laat
1
and
Aleksej Mavrin
2
Affiliations:
1
University of Amsterdam, Netherlands
;
2
Verizon Nederland B.V., Netherlands
Keyword(s):
Cloud computing, Infrastructure as a Service (IaaS), on-Demand Infrastructure Services Provisioning (ISOD), Composable Services Architecture (CSA), GEANT Multidomain Bus (GEMBus).
Related
Ontology
Subjects/Areas/Topics:
Cloud Computing
;
Cloud Computing Architecture
;
Cloud Delivery Models
;
Cloud Standards
;
Communication and Software Technologies and Architectures
;
e-Business
;
Enterprise Information Systems
;
Fundamentals
;
Languages, Tools and Architectures
;
Model-Driven Software Development
;
Platforms and Applications
;
SAAS, PAAS, IAAS
;
Service Composition and Mashups
;
Service-Oriented Architectures
;
Services Science
;
Software Engineering
;
Technology Platforms
Abstract:
Infrastructure as a Service (IaaS) is one of the provisioning models for Clouds as defined in the NIST Clouds definition. Although widely used, current IaaS implementations and solutions doesn’t have common and well defined architecture model. The paper attempts to define a generic architecture for IaaS based on current research by authors in developing novel architectural framework for Infrastructure Services On-Demand (ISOD) provisioning that is originated from the telecommunication and networking area and allows for combined network and IT resources provisioning. The paper proposes the Composable Services Architecture (CSA) for dynamically configurable virtualised services. The proposed CSA includes such important component as the Services Delivery Framework (CSA SDF) that defines the services provisioning workflow and supporting infrastructure for provisioned services lifecycle management. The CSA SDF extends existing lifecycle management frameworks with additional stages such as
“Registration and Synchronisation” and “Provisioning Session Binding” that specifically target such scenarios as the provisioned services recovery or re-planning/migration and provide necessary mechanisms for consistent security services provisioning as an important component of the provisioned on-demand infrastructure. The paper also describes the GEMBus (GEANT Multidomain Bus) that is considered as a CSA middleware platform. The presented architecture is the result of the on-going cooperative effort of the two EU projects GEANT3 JRA3 Composable Services and GEYSERS.
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