Cloud computing

Cloud Computing

Satish Kumar Jayaram

Agenda

• What is Cloud?• Need of Cloud?• Pros and Cons of Cloud?• Types of Cloud• Security and Compliance• Cloud Service Providers• How to choose right option?

What is Cloud?

• Cloud computing means storing and accessing data and programs over the Internet instead of local computer's hard drive or network

Need of Cloud• Reduce Cost– Capex and OpEx is significantly minimized

• Reduce human resources– Frees valuable resources and focus them on delivery

rather than maintaining hardware and software

• Reduce carbon foot print– $12.3 billion in energy savings and 85.7 million

metric tons of CO2 savings annually by 2020

Pros and Cons of Cloud

• Pros– Cost saving – Scalability– Hassle free infra maintenance

• Cons– High Latency– Depended on internet– Data Security

Software as a Service (SaaS)• As a software licensing and delivery model in which software

is licensed on a subscription basis and is centrally hosted

• Example

Infrastructure as a Service (IaaS)• Infrastructure as a Service (IaaS) provides access to computing

resource in a virtualized environment.• Example

Amazon Cloud services

Rackspace

Infrastructure as a Service (IaaS)• Infrastructure as a Service (IaaS) provides access to computing

resource in a virtualized environment.• Example

Amazon Cloud services

Rackspace

Cloud Setup

Cloud Formation

• Private – Company will take up the ownership and other factors, it will be managed within company’s firewall– On premises - infra at own campus– Externally hosted – hosted for one company but handled by

specialists

• Public – Available to general public or large group. Owned and maintained by cloud servicing companies.

• Hybrid – Mixed of both private and public cloud, management responsibilities are divided between public cloud and private cloud.

Security and Compliance

• Cloud security control is classified under following categories– Deterrent controls - To prevent any purposeful attack on

a cloud system. These controls do not reduce the actual vulnerability of a system.

– Preventative controls – It will safeguard vulnerabilities of the system. cover the attack and reduce the damage and violation to the system's security.

Security and Compliance

– Corrective controls - reduce the effect of an attack. It take action as an attack is occurring.

– Detective controls – It is used to detect any attacks that may be occurring to the system.

Security and Compliance

• There are few cloud providers certified with PCIDSS, HIPAA compliance

• Following are the key requirements to meet any compliance– Business continuity and data recovery – Disaster recovery and

data loss should be recoverable

– Logs and audit trails - properly secured, maintained for as long as the customer requires, and are accessible to them

– Unique compliance requirements - The data centers maintained by cloud providers may also be subject to compliance requirements

Cost Factor• Cost in cloud computing relies on the following characteristics

– A pay-as-you-go model with minimal or no upfront costs

– Usage-based pricing, so that customer costs are based on actual usage

– Scalability, so that customers can dynamically consume more or less resources as and when they required it.

Cost Factor

• 42% - Money spent on hardware, software, UPS, network and Disaster Recovery arrangements.

• 58% - of cost is involved in heating, air conditioning, property taxes and labor costs.

• Owning a data center is much complicated - Recurring expenses and aging of applications and infrastructure may not meet the business expectation

Cost Factor

• A sample data study on an education institution for a student management software.

Summary Cloud system

Company XOwn

infrastructureFirst Year Cost $ 12,000 $ 60,000 Ongoing Yearly Vendor Fees $ 10,000 $ 6,000

Ongoing Yearly Hidden Costs $ - $ 17,600 Years of Ownership 5 years 5 yearsTotal Ongoing Yearly Costs $ 40,000 $ 94,400

Total Cost of Ownership (TCO) $ 52,000 $ 154,400

Cloud Service Providers

• Global vendors– Google – Amazon– Rackspace– Atlassian

• Indian vendors– Control S– Zenith Infotech– Ramco

How to choose right option

• Following points need to be considered before opting any cloud system

– Know the nature of the applications and the workloads at the core of data centers.

– Tethering infra structure for few people is really a huge cost consuming fact. Analyze the number of users for important applications.

– Back ward compatible systems.

Take away

• Cloud types– Saas, Paas and Iaas

• Cloud formation types– Private, Public and Hybrid

• Security– Deterrent, Preventative, Corrective and Detective controls

• Compliance– Business continuity and data recovery, logs and audit trial, unique

compliance requirements

Reference

• Wikipedia• Cloudtutorial• Whatiscloud• Ibm

Thank you