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Open source Server Virtualization

Virtualization is most popular buzz world these days, speically server virtualization, people are sometime thinking why should i go for virtualization as computers and servers are getting cheaper day by day. But virtualization is a broad term it includes, Server, Platform, Storage, Desktop and Network etc.
Earlier I was thinking why should I got for Virtualization?
Why I need Server Virtualization?
I came to know that Virutalization can combine multiple software workloads on one computer system and then I can run various VMs (Virtual Machines) which saves, money, space, power as we can use existing system resources which are not utilized suppose you have requirements for multiple servers like mail server, application server, database server, webserver, storage server, domain controller etc, then you may have multiple hardware for all in traditional case, but if you monitor all above server you will notice that all the server hardware resources are not utilized fully I.e Primary Memory, Secondry Storage and Processor, all servers consumes electricity lets say 750 watts per server is power utilized so if you multiply all hardware you are consuming power which really can be saved another is physical space required in racks or server farm or data center. Server Virutualiztion covers all above issues.
But Question may come in your mind, what if server crashes then all my VM gets damaged. and What if server is hacked, if server is hacked only the VM which is hacked that will be under control of hacker, other machines will still remain in your control. We will cover all the questions in this article.
Server Virtualization is defined by many authors in many ways but from above concept you can now define easily that Server Virtualiztion is combination of hardware and software which uses utilizes existing hardware efficiently to create Virtual Machine (VM).
Hardware can be any Server Hardware but processor should support Virtualization, Software will be Hypervisor.
Hypervisor is operating software which manages resources efficiently for your VM, it will be loaded at hardware and VMs will be created using Hypervisors. there are many types of virutalizations like Para-Virutalization, OS-Level Virutalization  and Application level Virutalization, Now suppose you got hardware, now which Virutliazation Technology you should chose, 
Paid or Free, Open source or closed source, as the technology is very popular so vendors are making lots of money by selling their different flavours by combining hardware, software making suits, installation, confiuguration and maintenance etc. Most popular thse days are VMWare, Microsoft Hyper-V, Citrix Xen-Hypervisor, OpenVZ, and some cloud vendors, but i will not include Cloud Computing here, I am just conver virutlization Technology. I will not waste your time to explore all above, if you have decided to pay lots of money for virutaliztion and remain tense free then go for VMWare which has a lots of options for Storage as well, but if you have got IT Skills then I recommend go for opensource Server Virualization i.e; OpenVZ, KVM,  Xen-Hypervisor and Proxmox was my choice. I explored both, but in my opinion promox is best, Why? becuase it supports many Storage Devices and supports both OpenVZ and KVM. PROXMOX is open source Server Virutalization Operating System, you can download indepedent ISO from proxmox website Version 1.9 and 2.0 both are available but 2.0 had many features which 1.9 didn't have. I am updating promox tutorials and isntallation guides for your ... please keep visiting this blog.

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