11-06-2012, 11:33 AM
cloud-computing
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Abstract:
In current IT/ITES market where most of the organization started to implement the “Integration
of Service based Methodology” for their clients and also for the internal structure of organization
(especially for the dedicated IS team of the organization).The “Cloud Concept” built upon
the three pillars of current computing system such as “Infrastructure”, ”Platform” and
the “Software” or applications. The business benefit of “Cloud” is it use to provide “On demand
Service” which helps to full fill the demand of chain execution can be the cause of reducing
expenses of implementation of multiple processing units. Cloud provides the concept of
updating of resources without affecting the underlying infrastructure, which reduce the need
of backup system and encourage the continuous execution of application. Cloud provides
potential “Reliability” and “Scalability” for the applications either deployed or are running on
cloud. Since, cloud use to assure out most security for any business application, it provides
a “Private Cluster” for each application.
Since in IT/ITES service industries, the cost of “Data Security”, “Server
Management” ,”Application Management”, “Infrastructure Management” and “Services
Software” etc are increasing day by day. A report from “Data Centre India” reviled that the
above expenses in 2012 will be around 296 dollar per day where as in 2011, 2010, 2009,2008 it
was 280 dollars, 260 dollars, 244 dollars and 211 dollars.
Why Cloud- As basic Business Scenarios:
Suppose, a business unit of an enterprise requires to deploy an application which will do the
critical “Business Analysis considering some factors of current Market”. This application need
to be deployed wit in a week time but to deploy this using the resource of organization will
take a lots of time because to follow some of the cyclic processes. In this scenarios the “Cloud
Computing” mainly the part called “Infrastructure as a Service” is very useful to make the things
done with minimal expenses. This not only reduce the cost of deployment, but also reduce
the timeframe to task done, platform independent, security, scalability, ongoing enhancement
facilities etc. In one word “Cloud” opened multiple way for upcoming business facilities. A
research shows by implementing “Cloud based Solution or deployment” approaches” the 73%
of company able to reach their “Time of Market(TOM)” for particular application and “Total
Cost Ownership(TCO)” of services was showing low rate then “On-Premise” services with a
fair “Return on Investment(ROI)”.
There are three type of specific service provider are there in market for cloud such as 1] Hosting
service provider- Provide space to host application such as “Google” 2] E-Commerce Service
provider- Provide e-commerce related service, such as “Sales force. Com” 3] Disk Storage
Service Provider- Provide secure data storage space, such as Microsoft.
Service Provider
ROI in
2009(%)
ROI in
2010(%)
Top of Form
E-Commerce
Service
ProvidersBottom of
Form 46.11 102.5
Top of Form
Hosting
ServicesBottom of
Form 26.08 138.7
Top of Form
Disk Storage
SystemsBottom of
Form 116.33 318.6
ROI of service provider from Cloud implementation in year 2009-10 as per NASDAQ report
As per the customer scenarios the cloud customer can be characterize in three group 1] Public
Cloud User – Provided by any third party. A research from “Cloud Computing Journal” says
that 75% of the IT server workload will migrate to a private cloud, and the remaining 25% will
transition to a public cloud; transition to the new cloud environments will occur steadily over
3 years2] Private Cloud User - Broad mission sensitive project require private infrastructure for
implementing cloud and 3] Hybrid Cloud User – User of both Public and Private Cloud.
What is Cloud?
Application platform, consumer service, infrastructure provided by the service provider to build
internet application. The service provided by cloud are categorize in i) Software As a Service
ii) Infrastructure As a Service iii) Platform As a Service iv) Database As a Service v) Software
plus Service etc. Cloud service platform are in infancy but this yet not measure by any business
model or metric. Some service provider such as Microsoft, Amazon, Oracle has added the
credibility for future use.
Cloud Architecture:
Cloud architecture are based on creation of large datacenter by defining a n abstraction
between the platform and the operational system. Basically systems which use for deploying
an application or information storing are used to call “Management Fabric Automated” system.
This also an important part of cloud architecture. At the time of the deployment it provisions
the hardware, deploy the operating system image on server and deploy services on server.
The number of server can be more than one. The set of server can also follow the “Grid
Approach”, i.e. can be connected through LAN. The owner of the service can set the “Security
Configuration” and other “Access Right” for service. Instead of that the architecture also use to
have “Load Balance”, “DNS Server” and “”.”Switches” and “Router”.
Cloud- What about Microsoft in this era:
Microsoft also started its journey long back with “Hot Mail”, “XBOX” and “MSN”. “Microsoft
Online Service” which is a “Cloud base Collaborative Platform” includes “SharePoint
Online”, “Exchange Hosted Service”, “CRM Online” and “Conferencing Service”.
“Windows Azure” is the main operating system for AZURE platform and “SQL Azure” is the
database engine where as “AppFabric” is a middleware component consists of services.
“Windows Azure” provide platform not only to host the services but also for developing the
services it provides a development fabric and the developer also can test the service after
development. Along with this “Windows Azure” provides three basic services which are as
follows:
Compute: the compute service offer scalable hosting service on Windows server 2008
with “Hyper –V” support. The platform is virtualized and run IIS 7.0 for ASP.Net web
application.
Storage: There are three type of storage support is there 1] Table 2] Blobs 3] Queue. The
storage type support REST based direct support using REST API.
Manage: This includes automatic commissioning of “Virtual Machine” and deploying service
to them as well as configuring switch, load balancer and to maintain user define state of service.
SQL Azure is the database system of windows cloud platform. Developer can use SQL Azure
using tabular data stream which is standard mechanism for accessing on premise SQL server
mechanism.
.Net Service is acting as a middleware, providing “Access Control Service” and “Service Bus”.
