A unified architecture of IaaS cloud solutions

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1 A unified architecture of IaaS cloud solutions CLASS Conference 2012 (CLASS'12) Robert Dukarić and Matjaž B. Jurič XLAB and FRI

2 Introduction At least 50 different definitions of Cloud Computing.

3 Introduction NO unified IaaS architecture is available. Many organizations do not take advantage of IaaS solutions, partly due to uncertainty and a lack of information about their capabilities. A mechanism for common understanding of IaaS technologies is required.

Introduction IaaS (Infrastructure as a Service) IaaS Application Virtual Infrastructure (VI) manager Data Internal datacenter Runtime VM 1 VM 2... VM N VM 1 VM 2.

4 Introduction IaaS (Infrastructure as a Service) IaaS Application Virtual Infrastructure (VI) manager Data Internal datacenter Runtime VM 1 VM 2... VM N VM 1 VM 2... VM N Middleware Operating Systems Hypervisor Hypervisor External cloud Hardware Hardware Physical host 1 Physical host 2 Virtualization Servers Storage Network Managed by provider Manager by end-user

5 IaaS architectural framework The goal of the proposed architectural framework is to 1) present a common ground for analysis, comparison and evaluation of IaaS cloud implementations, 2) organize the essential architectural components into layers, and 3) define dependencies between particular layers and components Security layer Core layer Management layer Management tools Authentication Identity Image repository Scheduling Charging and billing Logging CLI tools APIs Authorization Dashboard Control layer Support layer Orchestrator Security groups (network isolation) SLA enforcement SLA monitoring Metering Policy control Notification Orchestration Message bus Database Federation Resource Single sign-on (SSO) Availability zones HA cluster Hybrid support Value-added s Live migration Portability support Image contextualization Virtual Application Transfer Elasticity SLA definition User and group Monitoring Security monitoring Resource abstraction Compute Storage Volume Network Reporting Power Incident Lease 44 components, 7 layers

6 Classification Evaluation We evaluated the classification by assessing five open-source and four commercial IaaS platforms, and mapped their capabilities to components and layers defined within our framework. Layers OpenN ebula Eucaly ptus OpenSt ack Nimbu s Citrix Cloud Stack Microsof t Private Cloud VMwar e vcloud Resource abstraction layer Core layer Support layer Management layer Management tools Security layer Control layer Value-added s Mappings between the proposed framework and chosen IaaS platforms Cisco USD Oracle IaaS

7 Classification Evaluation Average product coverage (%) of IaaS architectural framework OpenNebula Eucalyptus OpenStack Nimbus Citrix CloudStack Microsoft Private Cloud VMware vcloud Cisco USD Oracle IaaS Average

8 Classification Evaluation Average product coverage (%) of IaaS architectural framework OpenNebula Eucalyptus OpenStack Nimbus Citrix CloudStack Microsoft Private Cloud VMware vcloud Cisco USD Oracle IaaS Average

9 Classification Evaluation Average product coverage (%) of IaaS architectural framework OpenNebula Eucalyptus OpenStack Nimbus Citrix CloudStack Microsoft Private Cloud VMware vcloud Cisco USD Oracle IaaS Average

10 Functional Dependencies Example 1 (hybrid support VaS) Identity Image repository Core layer Scheduling Charging and billing Logging Support layer Message bus Database Transfer Value-added s Availability zones HA cluster Hybrid support Live migration Portability support Image contextualization Virtual Application

11 Functional Dependencies Example 2 (orchestrator component - layer) Management layer Management tools CLI tools APIs Dashboard SLA enforcement Metering Policy control Control layer SLA monitoring Notification Orchestration Federation Orchestrator Resource Elasticity User and group SLA definition Monitoring Reporting Power Incident Lease

12 Functional Dependencies Functional dependencies between particular components Core layer Identity Image repository Scheduling Charging and billing Logging Security layer Authentication Management layer Management tools CLI tools APIs Authorization Security groups (network isolation) Single sign-on (SSO) Security monitoring SLA enforcement Availability zones HA cluster Metering Control layer Value-added s Hybrid support Policy control Live migration Portability support SLA monitoring Notification Image contextualization Orchestration Virtual Application Support layer Message bus Transfer Database Federation Elasticity SLA definition Reporting Power Dashboard Orchestrator Resource User and group Monitoring Incident Lease Resource abstraction Compute Storage Volume Network

13 Evaluation and Results Success rate of particular project Number of evaluated/chosen IaaS systems 25, ,0 18,2 19, ,0 13,3 8 10,0 5,0 7,7 8, ,0 Project A Project B Project C Project D Project E 0 Project A Project B Project C Project D Project E Success rate Number of evaluated systems Number of chosen systems Projects: KC Class, Telekom Slovenije

14 Evaluation and Results The evaluation has shown: 1) notable distinction of feature support and capabilities between commercial and open-source IaaS platforms, 2) significant deficiency of important architectural components in terms of fulfilling true promise of infrastructure clouds, and 3) real-world usability of the proposed architectural framework that facilitates the decision making in IT organizations for choosing the most suitable IaaS cloud solution Extended article was published in Future Generation Computer Systems Elsevier (IF = 1.978) DUKARIĆ, Robert, JURIČ, Matjaž B. Towards a unified taxonomy and architecture of cloud frameworks. FGCS, Future gener. comput. syst.. [Print ed.], 2012, str. [1-29], ilustr. 3?v=s5, doi: /j.future [COBISS.SI-ID ]

15 e-naslov: e-naslov: e-pošta: HVALA!

A Taxonomy and Survey of Infrastructure-as-a- Service Systems

A Taxonomy and Survey of Infrastructure-as-a- Service Systems Robert Dukarić XLAB d.o.o./xlab Research, Ljubljana, Slovenia Faculty of Computer and Information Science, University of Ljubljana, Ljubljana,