what is cloud computing? A simple and learning approach

1. Computing
Cloud

2. • Large group of remote servers
• Provide high storage space
• Multiple user can access data through single server
without purchasing licenses for different apps
• New IT focus

4. Cloud Infrastructure
Full
virtualization
Para
virtualization
• Installation actually in servers
but shown in clients
• For running unique apps
• One way to access cloud
• Multiple OS on one device at
same time
• Better scaling; requires less
processor utilization
• Used for:
a) disaster recovery
b) capacity management

5. Components :
Clients
Server
Distributed service

7. Pros:
1. Applications access without installing
2. Approx. unlimited data storage
3. Access data from anywhere
Cons:
1.Internet outage
2.Site access
3.No secrecy

8. Cloud Computing Service Model
CLIENTS
SAAS
PAAS
IAAS

9. • Apps are hosted
by single
provider
• User need to
access it by its
own browser
• No subscription
fee
Software As
A Service
• For storing images
• For storing any data
• Access to application
software and databases
Storage As
A Service
SAAS

10. PAAS ( Platform As A Service)
No need to install software
cloud providers deliver a computing platform.
Benefits: Application development, design &
testing.
Pros:
• Improved performance
• Lower cost
• Flexibility
Cons:
• Complexity
• Security
• Labor costs

11. Infrastructure As A Service
 IAAS offer computers – physical or virtual machines.
 Infrastructure as a Service is sometimes referred to
as Hardware as a Service.
 The service provider owns the equipment and is
responsible for housing, running and maintaining it.
 IAAS are costly.
 Used by corporates.

13. Real
Exampl
e

18. Cloud migration planning
• Get educated
• Calculate saving
• Assess security
• Hire professionals
• Define desired outcomes
• Run test migration

19. Economic benefits
• People
• Hardware
• Pay as you go
• Time to market

20. OPERATIONAL BENEFIT
• Reduce Cost
• Increase storage
• Automation
• Flexibility
• Mobility

21. Security risks
• Privileged user access
• Regulatory compliance
• Data location
• Recovery
• Long term viability

22. Monitoring performance
• Connection speed speedtest.net ,cloudstatus hyperic.com
• Datastore delete times
• Datastore read times
• Lag time

23. Lets have a small
video…