VirtualizationA way To Begin with Virtual Reality…- Rahul Khanwani

•If you have ever divided your hard drive into different partitions than you probably already know about the virtualization.•Is used with OSes , Servers Storage Devices Or Network Resources.

•Virtualization Is A way of Emulating hardware in software.

•You will feel the Imaginary use of the hardware rather then factual or realistic hardware.

•A virtualization system that partitions a single physical “machine” into multiple virtual machines.

•For Example,▫Dividing hard drive into logical portions.▫Mapping A Drive.▫Using FTP Servers.

•Virtualization is way to run multiple operating systems and user applications on the same hardware▫E.g., run both Windows and Linux on the same laptop.

•How is it different from dual-boot?▫OSes run simultaneously

•The OSes are completely isolated from each other

• Server consolidation▫Run a web server and a mail server on the

same physical server• Easier development

▫Develop critical operating system components (file system, disk driver) without affecting computer stability

• Testing▫Testing a network product (e.g., a firewall)

may require tens of computers▫Try testing thoroughly a product at each pre-

release milestone• Cloud computing

• Hardware▫ Dividing a Part Of A hard wares and sharing resources via

virtual Machine.• Desktop

▫ Cloud Computing & Server Virtualization.• Software

▫ As a concept of Application Sharing. • Memory

▫ Sharing Your virtual memory (RAM).• Storage

▫ Hard drive storage as a virtual memory.• Data

▫ Database virtualization, the decoupling of the database layer, which lies between the storage and application layers within the application stack over all.

• Network▫ creation of a virtualized network addressing space within or

across network subnets.

•A virtualization system that partitions a single physical “machine” into multiple virtual machines.

•Terminology▫Host – the machine

and/or software on which the VMM is implemented

▫Guest – the OS which executes under the control of the VMM

Role Of Hardware Features

Guest OS

System Architructure

HardwareHardware

Guest OS

•Processors▫More then one OS running on the mashine

So Much Powerful Processor Needed.▫Not Only Depends On

Clock Frequency Core i3 , Atom (1.87 GHz)

▫Also Depends On RAM Cache Size

•Hard Drive▫Where To Put The Virtual OS / Guest OS?▫Find The Minimum Requirement Of Your

Guest OS. Host OS.

•Hardware Resource > HostOs H/w + GuestOS H/w

•Minimum Requirments Win 7 - Minimum 8 GB HDD 512 MB RAM Vista - Minimum 8 GB HDD 1 GB RAM

Example Of Virtual Mashine

•Purchasing Many Machines For Different purposes.(costly)

•Setting up them on Network and connecting them (Adding the new machine or server).▫Thus no need of any installation process.

•No need to provide extra▫Electricity,▫Networking facility,▫Floor space.

•Can Create Multiple Mashine On Same Server Which saves Money.

•Provides dynamic Guest Processor Frequency Adjustment Which Make It Simple.

•Have Inbuilt Monitoring And Maintenance saves time and space effort.

•Upgrading gets easier.•Scalability(increase needs).•Saving Software Costs.•Resource sharing.

• Citrix XenServer• IBM PowerVM• iCore Virtual• Red Hat KVM(Kernal-based Virtual Machine)• Linux Vserver• Microsoft Hyper-V• Microsoft Windows Virtual PC• Open VZ Linux• Oracle Solaris Containers• Oracle Virtual box• Oracle VM Server

•In Next Video Installing Windows Xp Via Virtual Machine.•Windows 7 Is Used As A host OS.•Oracle Virtual Box Is Used As A Mirror.

•HDD▫Static VDI▫Dynamic VDI

•RAM•Cores•Virtual Box Setup•Xp Image file

•In Next Video Installing AndroidVia Virtual Machine.•Ubuntu Is Used As A host OS.•Oracle Virtual Box Is Used As A Mirror.