3. Introduction
“As of now, computer networks are still in their infancy, but as
they grow up and become sophisticated, we will probably see
the spread of ‘computer utilities’ which, like present electric
and telephone utilities, will service individual homes and
offices across the country.”
Leonard Kleinrock
5. Cloud
"A Cloud is a type of parallel and distributed
system consisting of a collection of interconnected
and virtualised computers that are dynamically
provisioned and presented as one or more unified
computing resources based on service-level
agreements established through negotiation
between the service provider and consumers.”
6. Market Oriented Cloud Architecture
• Need
– Consumers will require different QoS to be
maintained by their providers.
– Providers will need to consider and meet different
QoS parameter of each individual consumer
– So market oriented resource management is
necessary to regulate the supply and demand
cloud resources at market equilibrium.
8. Market Oriented Cloud Architecture
• Users/Brokers :
– Submit service request from any where in the
world.
• SLA Resource Allocator :
– Interface between cloud provider and users.
11. Amazon EC2
• Elastic Compute Cloud (EC2)
• Amazon Machine Image (AMI)
• EC2 Uses XEN Virtual Machine
• Virtual Os :Linux, Solaris, Windows
• Simple Storage Service
• Elastic IP address
• Amazon Cloud Watch
• Realiability
12. Google App Engine
• For developing and hosting web application in
google managed datacenter
• Automatic scaling*
• Free up to certain level of consumption
• Support for python, java, and Go
• Restrictions
13. Microsoft Live Mesh
• Access stuffs on your computer from almost
anywhere
• Free to use internet based file synchronization
application
• Remote desktop access via internet
14. Sun Grid
• Now Know as oracle Grid
• Open source batch queuing system
• Used on computer farm or high performance
computing cluster
17. Limitations of present service
providers
• Inflexible pricing
• Consumers are restricted to offering from a
single provider at a time
• Unable to swap one provider for another
• No standard interface
19. Global Cloud Exchange
• Market directory
• Banking system
• Brokers
• Price setting mechanism
• Admission control mechanism
• Resource management system
• Consumers utility function
• Resource management proxy
20. Challenges
• Unwillingness to shift from traditional
controlled environment
• Regulatory pressure
• How to obtain restitution in case of SLA
violation
Hinweis der Redaktion
Explane to get electrical power in home ………………………….
Explane notes
As consumers rely on Cloud providers to supply alltheir computing needs, they will require specific QoSto be maintained by their providers in order to meettheir objectives and sustain their operations. Cloudproviders will need to consider and meet different QoSparameters of each individual consumer as negotiatedin specific SLAs. To achieve this, Cloud providers canno longer continue to deploy traditional system-centricresource management architecture that do not provideincentives for them to share their resources and stillregard all service requests to be of equal importance.Instead, market-oriented resource management [7] isnecessary to regulate the supply and demand of Cloudresources at market equilibrium, provide feedback interms of economic incentives for both Cloudconsumers and providers, and promote QoS-basedresource allocation mechanisms that differentiateservice requests based on their utility.
Service level agreement
ExplaneQoS requirements cannot be static andneed to be dynamically updated over time due tocontinuing changes in business operations andoperating environments. In short, there should begreater importance on customers since they pay foraccessing services in Clouds. In addition, the state-ofthe-art in Cloud computing has no or limited supportfor dynamic negotiation of SLAs between participantsand mechanisms for automatic allocation of resourcesto multiple competing requests.