Cloud Computing PDF Free Download

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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
Top of Form

ROI in 2009(%)

ROI in 2010(%)

E-Commerce Service ProvidersBottom of
Form Top of Form

46.11

102.5

Hosting ServicesBottom of
Form Top of Form

26.08

138.7

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”.

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