Transcript CLOUD COMPUTING & COST MANAGEMENT

CLOUD COMPUTING &
COST MANAGEMENT
Presented by
S. Gurubalasubramaniyan, MSc IT, MTech
What is Cloud Computing ?
CLOUD
COMPUTING
INTERNET
COMPUTING
Computing
through
INTERNET
=
The term “cloud” is used as a metaphor for the Internet
Engineering view
Providing Services(SaaS, PaaS, IaaS) through Virtual
Machines (VM) on the lap of large Physical machines
allocated by the service provider
Business view
Cloud computing provides unlimited infrastructure to store and
execute customer data and program. As customers they do not
need to own the infrastructure, thereby merely accessing or
renting, they can forego capital expenditure; and consume
resources as a service, paying for what they use. i.e.,
Addressing scalability for large scale applications
CLOUD
COMPUTING
Definition according to
National Institute of
Standards and Technology
(NIST)
Cloud Computing is a model for enabling convenient, on demand
network access to a shared pool of configurable computing resources
(e.g., networks, servers, storage, applications and services) that can be
rapidly provisioned and released with minimal management effort or
service provider interaction
The cloud model promotes availability
and is composed of five essential
characteristics, four deployment models,
and three service models
5 Essential Cloud Characteristics that matters Cost Management
Ondemand
Self Service
Measured
Service
Broad
Network
Access
Resource
Pooling
- Location
Independence
Rapid
Elasticity
4 Cloud Deployment Models
Enterprise owned or leased
Shared infrastructure for specific community
Sold to public, mega-scale infrastructure
Composition of two or more clouds
3 Cloud Service Models
Cloud Software as a Service (SaaS)
- Use service provider’s applications over a network.
Cloud Platform as a Service (PaaS)
- Deploy Customer created applications to a cloud
Cloud Infrastructure as a Service (IaaS)
- Rent processing, storage, network capacity and other
fundamental computing resources.
# of Marketplace providers
Software as a Service (SaaS)
It is a Software Delivery Model
 Service is delivered through a browser.
 No Hardware or Software to manage.
 Increasingly popular with Small and Medium sized Enterprises (SME).
 Examples of usage:
 Your email is hosted on an exchange server in your office and it is very slow. You
may outsource this with services like Hosted exchange.
 Your current Customer Relationship Management (CRM) package is not
managing the load or you simply don’t want to host it in-house. You may use
SaaS provider such as salesforce.com.
 Enterprise Fraud Management through SaaS.
Platform as a Service (PaaS)
» It is a Platform delivery model which deploys customer created applications to a cloud.
» Plat forms which are built upon Infrastructures are expensive, hence it is cost efficient
to go for platforms as a service.
» The Platform management is also cumbersome when compared to using a platform as
a service.
» Estimating the demand in a platform is highly unpredictable, hence the platform as a
service can take care of the demand.
» Examples of usage:
» You need to host a large file (10MB) on your website and making it available for 35,000
users for only two months duration. You may use Cloud Front from amazon.
» You want to start Storage Services on your network for a large number of files and you do
not have the storage capacity. You may use Amazon S3.
‼ It is a Computer Infrastructure delivery model. Hiring fundamental Computing
Resources.
‼ Access to
→ Infrastructure stack.
→ Full Operating System access.
→ Firewalls.
→ Routers.
→ Load Balancing.
‼ Example of usage:
→ You want to host a website but only for a few days. You may use Flexi Scale.
→ You want to run a batch job but you do not have the infrastructure necessary
to run it in a timely manner. You may use Amazon EC2.
Advantages and Challenges
Advantages
 Pay per use
 Low Over Head
 Eliminate Management Headaches
 Instant Scalability
 Grow and shrink according to need
Challenges
• Disrupts Services. Storage Controller
– single point failure/compromise.
• Theft of Information.
• Loss of Privacy. Exposure of data to
Foreign Governments.
 Security and
• Damage information.
 Reliability
 Small, Medium and Large Enterprises can use the
services of cloud computing by using cost effective
public clouds for specific needs.
 Any change in the business process causes drastic
effect on cost management. These costs can be
effectively reduced by using service based
utilization of cloud computing.