1. A MAS to Manage and Monitor SLA for Cloud Computing
A draft position paper
Benjamin Gâteau, Public Research Centre Henri Tudor
CLOSER / MAS Special Session May 8, 2011, Noordwijkerhout, The Netherlands

2. Agenda Introduction Objectives Normative Organisation Model
Arbitration Model
Conclusion 2

3. Introduction
Cloud Computing offers mutualisation of IT infrastructures as services :
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
Based on virtualisation
Pay as you go (pay on demand) business model
Elasticity
Flexibility
Dynamicity
=> Dynamic Infrastructure 3

4. Introduction
Cloud Computing offers mutualisation of IT infrastructures as services :
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
Based on virtualisation
Pay as you go (pay on demand) business model
Elasticity
Flexibility
Dynamicity
=> Dynamic Infrastructure
[GoGrid.com / Adding a Cloud Server] 4

5. Introduction
Cloud Computing offers mutualisation of IT infrastructures as services :
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
Based on virtualisation
Pay as you go (pay on demand) business model
Elasticity
Flexibility
Dynamicity
=> Dynamic Infrastructure
[GoGrid.com / Adding a Cloud Server] 5

6. Introduction
Cloud Computing offers mutualisation of IT infrastructures as services :
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
Based on virtualisation
Pay as you go (pay on demand) business model
Elasticity
Flexibility
Dynamicity
=> Dynamic Infrastructure
[ElasticHosts] 6

7. GoGrid example 7

8. VMware infrastructure example
Virtual Machines (VM) are stored on physical infrastructure
VM can be created, loaded, managed and configured remotely
VM =
OS,
CPU,
Memory,
Disk space,
Etc …
Plus others constraints
=> Service Level Agreement
Contract between customer and provider

9. GoGrid and SLA Server Uptime Persistent Storage
Network Performance: Internal and External
F5 Load Balancing
Cloud Storage
Server Reboot
Support Response Time
Domain Name Services
Physical Security 9

10. Objectives Agreement between customer and provider on : => Norms
SLA objectives
Security assurance level
Flexibility rules
=> Norms
Intelligent Cloud which take automatically the decision to manage its organisation of VM which collaborate between them to reach objectives …
Multi-Agent System
We need a mean to organise, rule and monitor a set of VM 10

11. Normative organisation model
An Organisation Specification (OS) composed by 4 dimensions:
Structural Specification (SS) => roles
Functional Spécification (FS) => missions
Contextual Specification (CS) => contexts OS FS NS SS CS
Normative Specification (NS) => norms concerning a role toward a mission in a specific context

12. Normative organisation model
OS instance = OE (Organisation Entity)
Structure = Agents playing roles
Functioning = Missions on which agents are commited

13. Organisation Entity = Running Cloud
How control the respect of norms (SLA, Security, Flexibility…) ?

14. Arbitration model Synai: keep the OE coherent relating to the OS Synai
Active Contexts CS
Inst MngAg
Context MngAg
Synai: keep the OE coherent relating to the OS
arbitration
instantiation
Agent1
Org Wrapper1
Active Norms NS
Norm MngAg
arbitration
instantiation
Agent2
Org Wrapper2
Structure SS
Struct MngAg
arbitration
instantiation
Agent3
Org Wrapper3
Functioning FS
Funct MngAg
arbitration
instantiation
MoiseInst

15. Controlling the Cloud 15

16. Conclusion Dynamic Virtual Infrastructure Management
Specification of an organisation
Arbitration of the organisation instances
Future work: multi-agent platform
Utopia (Tudor) => generic agents
JaCaMo / JaCaVM => BDI agents 16

17. Questions?