Guest Lecture on "Cloud computing"
Organized by : Department of C.S.E, K L Deemed to be University
Speaker : Dr.Keith Maycock
Designation : Course Director for the
MSc in Web Technologies Specializing in Cloud Computing, National
Venue : Jasmine Hall
Date : 06-1-11
Time : 09.50A.M to 12.30P.M
All the students of B.Tech IV/IV
(CSE) and M.Tech (CSE & CN) have attended the session.
Topics Discussed:
Overview:
-Cloud
computing
-Other
trends
-M.sc in
Web technologies
-Teaching
strategies and opportunities.
Cloud characteristics:
-Shared
resources
-On demand
-Elasticity
-Usage
based metering
-Networked
access
Benefits:
1)Business delivery benefits:
-IT
resources can be leveraged optimally to serve fluctuating business needs
-Improved
Agility
2)Infrastructure management
benefits:
-Cost
savings in designing, provisioning and delivering new services.
-Cost
estimation through standardization and reuse of IT infrastructure.
-Reduced
human error.
Cloud flavors:
1) Public cloud:
A public cloud is one based on the
standard cloud computing model, in which a service provider makes resources,
such as applications and storage, available to the general public over the Internet.
Public cloud services may be free or offered on a pay-per-usage model.
The main
benefits of using a public cloud service are:
-Easy and
inexpensive set-up because hardware, application and bandwidth costs are
covered by the provider.
-Scalability
to meet needs.
-No wasted
resources because you pay for what you use.
2) Private cloud
Private cloud (also called internal cloud
or corporate cloud) is a marketing term for a proprietary computing
architecture that provides hosted services to a limited number of people behind
a firewall.
3) Community cloud
A hybrid cloud is a cloud computing
environment in which an organization provides and manages some resources
in-house and has others provided externally. For example, an organization might
use a public cloud service, such as Amazon Simple Storage Service (Amazon S3)
for archived data but continue to maintain in-house storage for operational
customer data. Ideally, the hybrid approach allows a business to take advantage
of the scalability and cost-effectiveness that a public cloud computing
environment offers without exposing mission-critical applications and data to
third-party vulnerabilities.
4) Hybrid cloud:
The community cloud is a cloud
infrastructure that is shared by several organizations and supports a specific
community, such as healthcare, that has shared concerns around mission, policy
and compliance considerations.
Delivery modes:
-Infrastructure
as a Service (IaaS)
-Platform
as a service (PaaS)
-Software
as a Service (SaaS)
