server virtualization concepts & features

Server Virtualization

Concepts & Features

Compiled by Ragesh Nair

Data Center


Few negative aspects of physical infrastructure


•Availability challenges

•More Hardware requirements to meet high availability and redundancy.


•Hardware Cost•Hardware Recovery Cost•Hardware maintenance cost•Temperature maintenance cost•Software,OS license cost•SAN installation cost•Server Deployment •Power consumption and energy expenses

Negative aspects of physical infrastructure


Virtual Infra Concepts


Virtual Server Concepts



•Type 1 Hypervisor

•Type 2 Hypervisor


Different types of virtualizationsServer Virtualization – consolidating multiple physical servers into virtual servers that run on a single physical server.Application Virtualization – an application runs on another host from where it is installed in a variety of ways. It could be done by application streaming, desktop virtualization or VDI, Microsoft Softgrid (App-v) is an example of Application virtualization.Presentation Virtualization – This is what Citrix Met frame (and the ICA protocol) as well as Microsoft Terminal Services (and RDP) are able to create.Network Virtualization – with network virtualization, the network is “carved up” and can be used for multiple purposes such as running a protocol analyzer inside an Ethernet switch. Storage Virtualization – with storage virtualization, the disk/data storage for your data is consolidated to and managed by a virtual storage system. The servers connected to the storage system aren’t aware of where the data really is.


Application virtualization


OS

APP01

APP02

User

Application virtualization State separation


OS

User

App Virtualization LayerAPP02

APP01 Runtime Environ

ment

Application virtualization State separation


Application virtualization


Combinations of virtualizationsApplication Virtualization + System Disk Virtualization


Combinations of virtualizationsSystem Disk Virtualization + Desktop Virtualization


Combinations of virtualizationDesktop Virtualization + Storage Virtualization


Combinations of virtualizationsThe Complete Cloud Computing


http://www.softonnet.com/eng/solutions/cloud-computing

Virtual Desktop Infrastructure


Virtual Desktop sample cost comparison

*Based on the average value from KSEB tariff rate


Virtual Infrastructure today


High availability and DR in virtualization


Virtual Infrastructure DR


Virtual Infrastructure Challenges


•Hypervisors•Types of virtualizations•Virtual Infra Vs App Virtualization•Flexibility of virtualization•Cost effectiveness•High availability and DR features


server virtualization concepts & features

Technology