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Virtualization Technology and Directions

Tushar TelichariPrincipal Software EngineerEMC Proven Specialist – Data Center Architect

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Agenda

• What is Virtualization?

• Objectives of Virtualization

• History of Virtualization

• Benefits of Virtualization

• VMware ESX Server

• Properties of Virtual Machines

• Related VMware products (widely deployed)

• Virtualized Data Center and Cloud Computing

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What is Virtualization?

• Emulation of one of more workstations/servers– Virtualization is the emulation of hardware within a software platform

– This allows a single computer to take on the role of multiple computers. This type of virtualization is often referred to as full virtualization

• Other types of virtualization– Virtual memory

– Virtual networks (VLAN)

– Virtual servers

– Virtual storage

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Objectives of Virtualization

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Objectives of Virtualization

• There are four main objectives to virtualization, demonstrating the value offered to organizations– Increased use of hardware resources

– Reduced management and resource costs

– Improved business flexibility and

– Improved security and reduced downtime

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Objectives of Virtualization

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History of Virtualization

• 1960s – Implemented by IBM to help split large mainframe machines into separate ‘virtual machines’

• 1980s – x86 revolution. Era of PC, LAN and the client server model

• 1999 – VMware introduced their first virtualization application for x86 based systems

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Benefits of Virtualization

• Virtualized technology offers many benefits to organizations looking to migrate from a physical environment to a virtual setting– Easier Manageability

– Elimination of Compatibility Issues

– Fault Isolation

– Increased Security

– Efficient use of Resources

– Portability

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Benefits of Virtualization

• Continued…– Problem-Free Testing

– Rapid Deployment

– Reduced Costs

– The Ability to Separate Applications

– Easier Manageability and Improved Uptime

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VMWare ESX Server

• Deploy multiple virtual machines on a single physical server

• Market leading:– Performance

– Stability

– Scalability

– Cross-platform support

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Properties of Virtual Machines

• Partitioning– Run multiple operating systems on one

physical machine

– Divide system resources between virtual machines

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Properties of Virtual Machines

• Isolation– Fault and security isolation at the hardware

level

– Advanced resource controls preserve performance

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Properties of Virtual Machines

• Encapsulation– Entire state of the virtual machine can be

saved to files

– Move and copy virtual machines as easily as moving and copying files

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Properties of Virtual Machines

• Hardware-Independence– Provision or migrate any virtual machine to

any similar or different physical server

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VMware VMotion

• Live migration of virtual machines

• Zero downtime

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Storage VMotion

• Storage independent live migration of virtual machine disks

• Zero downtime to virtual machines

• LUN independent

• Supported for Fibre channel SANs

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VMware DRS

• Dynamic and intelligent allocation of hardware resources

• Ensure optimal alignment between business and IT

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VMware HA

• VMware HA automatically restarts virtual machines when a physical server fails

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VMware Virtual Center

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What is Cloud Computing?

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Cloud offering examples

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Cloud computing enables cloud services

• Characteristics:– On-Demand / Self Service

– Accessed via the internet

– Minimal/no IT skills to implement cloud services

– Underlying technology is transparent to the user

– Web browser or web service API based access

– Dedicated or shared resources

– Rapid Elasticity

– Measured service

• Cloud service offerings classified into three models– SaaS, PaaS, IaaS

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First Step to Cloud – Virtualization

• Optimize existing resources – virtualize data center– Combine resources together and abstract them to create a virtual world

– Virtualization of application and infrastructure

• Extend the virtualization beyond a data center– Pool all your distributed resources from multiple sites

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Private Cloud

• Cloudification of pooled & virtualized internal computing resources involves– Centralized service management, service creation, automation

– Self service, auto provisioning, metering, load balancing, security, tiering

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Private Cloud – Federating with External Cloud

• A blend of internal and external cloud resources to present a seamless, managed service delivery to the business– Probably offers the best value to the enterprise

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Get the best of both worlds

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More Resources

Follow Sigindia

EMC IT’s Journey to the Cloud: A practitioner’s guide

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PHASE 1:

SERVER VIRTUALIZATION

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PHASE 2:

BACKUP & RECOVERY SYSTEMS

VIRTUAL DESKTOP

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PHASE 3: IT AS A SERVICE

APPLICATIONS & CLOUD EXPERIENCE

ON RAMP TO THE CLOUD

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