Virtualization-the Cloud Enabler by INSPIRE-groups (VTU,2014)

Virtualization-the cloud enabler

Pravin Hanchinal Co-founder & CEO

INSPIRE- groups

presentations

How was cloud computing so far?

How ahead?

What is Virtualization?

Virtualization is the ability to run virtual machines on top of a hypervisor

Virtualization and Cloud Computing

• Virtualization is the ability to run "virtual machines" on top of a hypervisor

• A hypervisor provides a uniform abstraction of the underlying physical machine.

• Abstraction in the key idea in Service Models of Cloud!

Timeline of Virtualization

• 1970s: virtual machines first used

• 1990s: x86 becomes prominent server platform

• 1999: VMWare first product to virtualize x86

• 2006: AMD and Intel offer hardware support

Benefits of Virtualization

• Greatest Cost Savings• Highest Server Utilization• Built-In High Availability• Zero Downtime Failover• Best Performance• Unmatched Reliability• Superior Security• Lowest TCO• Fastest, Easiest Management

* Image source: http://whitehatvirtual.com/blog/bid/334816/Top-5-Benefits-of-Desktop-Virtualization

Waste!!!

Imagine a nameserver doing the following:

What is a Virtual Machine (VM)?

• A virtual machine (VM) is a software implementation of a machine that executes programs like a physical machine.

• Each VM includes its own kernel, OS, supporting libraries and apps.

What VM does?

It just behaves like one - but it is not!

Some scenarios

The desktop user who wants to run a copy of Windows on his Linux computer running simultaneously

Some scenarios

A system architect wanting to run 3 different server OS on one machine or a cluster

Some scenarios

A programmer who wants to test his programs on a platform the customer is using

How to implement VM?

Native/ Bare Metal Hosted

VMM / Hypervisor

▪ VMM: Virtual Machine Monitor▪ Small special purpose operating system✓ Each process acts like a separate computer or VM✓ Can run a full OS in each virtual machine

Types of hypervisors (VMM)

• Type 1 (or native, bare metal) – run directly on the host's hardware to

control the hardware and to manage guest OS.

• Type 2 (or hosted) – run within a conventional operating

system environment.

Types of hypervisors (VMM)

How to execute guest instructions on a host?

Interpretation(emulation)

Slow execution speed, but easy implementation

Translation

Dynamic translation (JIT): translation while running

Static translation (AOT): multiple binary problemComplicated but faster execution, especially with optimizations

Run directly on the hardware

When the host and guest ISA are binary compatible

Types of Virtualization

Server VirtualizationDesktop VirtualizationApplication Virtualization

MemoryDataStorageNetwork

Server Virtualization

How it looks?

Server Virtualization -Vendors

VMWare ESXCitrix XenServerMicrosoft Hyper-VRed Hat RHEV

Desktop Virtualization

Desktop Virtualization

VDI (Virtual Desktop Infrastructure)Session Virtualization

image courtesy

Desktop Virtualization -Vendors

Desktop Virtualization - VendorsCitrix XenDesktopCitrix VDI-in-a-BoxVMWare viewVM Ware VDI-in-a-BoxMicrosoft VDIRedhat RHEV for Desktops

Application Virtualization

App on DemandNo installation,Easy upgrade

image courtesy

Application Virtualization -Vendors

Citrix XenAppVMWare ThinAppMicrosoft App-V

Pros and Cons of Virtualization

Pros:SandboxHardware independentOS independentFast RecoveryLive BackupMigrate dataReduced HardwareRun Multiple OS SimultaneouslyCost savingsUse of Multicore processorsSystem SecurityTest and Development

Cons:Less EfficientUnstable PerformanceTools lack abilityRapid DeploymentLatency of Virtual DiskBackup and Data SetsSecurity IssuesHardware compatibility issuesManaging and Securing is difficult

Virtualization: Enterprise Perspective

Reduced cost–Improve server utilization–Reduce hardware costs–Reduce power consumption

Agility–Operational scalability–Rapid provisioning

Security–Isolated Systems

Enough! Lets see in Action

Source: http://www.crackerjackann.net/blog/is-a-lack-of-leads-frustrating-you

Thank you

more presentation atinspiregroups.co.in/presentations/

Got questions?

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Stay connected

pravinhanchinal.com

What Next?

Go through this presentation againExplore moreRead DocumentationsExperiment

Useful Resources

http://inspiregroups.co.in/our-blogs/cloud-computing/

https://www.youtube.com/playlist?list=PLBo_x6sCgJ-HkYWzJSI2XqvHZft5Sc1L4

https://www.youtube.com/watch?v=3j3f5l2La7I

http://www.citrix.com/products/xenserver/overview.html

http://www.zdnet.com/virtualisation-suites-compared-7000001456/

http://wiki.xenproject.org/wiki/Xen_Beginners_Guide