Data Center Virtualization

Presented By :

Mohammad Ruhul AminVCP, RHCE

Assistant General ManagerICT Division

Dhaka Stock Exchange Ltd.

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Agenda

Introduction

What is Hypervisor

Benefits

Types of Virtualization

VMware vSphere

VMware vCenter

My Experiences

Demo

Q&A

Virtualization Technology Overview

The Old /Traditional Model:

• Single OS per machine

• Software and hardware tightly coupled

• Multiple applications often conflict

• Underutilized resources

Old model is challenging!

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Virtualization is a proven software technology that is

rapidly transforming the IT landscape and fundamentally

changing the way that people compute, such as an

Operating system, a server, a storage device or network

resources.

Ex: Run both Windows and Linux in the same machine

What is Virtualization

Hardware

Application

With VirtualizationWithout Virtualization

What is Virtualization

Hypervisor Layer

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“Hypervisor is a software layer sits between Hardware

and OSes which will interact with hardware and

resources and provide an interface to share the available

resources to Virtual containers.

Each operating system appears to have the host’s

processor, memory, and resources to itself. Instead, the

hypervisor is controlling the host processor and

resources.

What is Hypervisor

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nBare Mental/Native HypervisorsSoftware systems (Virtualization Software

like VMware) that run directly on the host’s

software as a hardware control and guest

operating system monitor.

The guest operating system thus runs on

another level above the hypervisor. This is

the classic implementation of the virtual

machine architectures.

Hypervisor Classifications

Embedded/Hosted HypervisorsSoftware applications (Virtualization

Software like HyperV, Xen, Citrix) that run

within a conventional operating system

environment. Considering the hypervisor

layer being a distinct software layer, guest

operating systems thus run at the third level

above the hardware

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nHypervisor Classifications

• VMware (Bare Mental/Native Hypervisors)

• Xen /Hyper-V (Embedded /Host Hypervisors)

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nType of Virtualization

• Server Virtualization

• Desktop Virtualization

• Application

• Memory

• Storage

• Data

• Network

• VMWare ESX

• Citrix XenServer

• Microsoft Hyper-V

• Red hat RHEV

Server Virtualization -Vendors

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Partitioning

Run multiple operating systems

on one physical machine

Divide system resources

between virtual machines

Key Benefits of Virtualization

Isolation

Fault and security isolation at

the hardware level

Advanced resource controls

preserve performance

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nKey Benefits of Virtualization

Encapsulation

Entire state of the virtual machine

can be saved to files

Move and copy virtual machines as

easily as moving and copying files

Hardware-Independence

Provision or migrate

any virtual machine to

any similar or different

physical server

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• Vmware vSphere5 is a Bare Mental/Native

Hypervisors which provides hardware virtualization

that presents a complete x86 platform to the virtual

machines.

• VMware vSphere, the industry-leading virtualization

platform for building cloud infrastructures, enables you

to run business critical applications with confidence

and respond to the business faster.

• It Allows multiple applications to run in isolation

within virtual machines on the same physical machine.

• It also provides direct access to the hardware resources

to give you much greater performance than software

emulation.

VMware vSphere 5

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• vSphere ESXi

• vSphere Distributed Resources Scheduler (DRS)

• vSphere Distributed Power Management (DPM)

• vSphere vMotion

• vSphere High Availability (HA)

• vSphere Fault Tolerance (FT)

Top vSphere Features

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vSphere ESXi provides a robust, production-proven, high

performance virtualization layer that abstract server

hardware resources and allow their sharing by multiple

virtual machines.

Unique memory engagement including memory

compression and advanced scheduling capabilities of the

vSphere host allow for the highest consolidation ratios

and the best application performance, in many cases,

even better than physical servers.

Top vSphere Features

vSphere ESXi

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nTop vSphere Features

• Deploy multiple virtual

machines on a single

physical server

• Market leading

Performance

Stability

Scalability

Cross-platform

support

vSphere ESXi

Physical Server

Virtual Machines

ESX Server

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nTop vSphere Features

vSphere Distributed Resources Scheduler(DRS)

67% of VMware customers use DRS in production

Resource Pool

Business Demand

• Dynamic and intelligent allocation of hardware resources

• Ensure optimal alignment between business and IT

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nTop vSphere Features

vSphere Distributed Power Management (DPM)

• Consolidates workloads onto fewer servers when the

cluster needs fewer resources

• Places unneeded servers in standby mode

• Brings servers back online as workload needs

increase

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nTop vSphere Features

vSphere Distributed Power Management (DPM)

Minimize power consumption while guaranteeing service levels

Resource Pool

Business Demand

Power Off

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nTop vSphere Features

vSphere vMotion

73% of VMware customers have implemented VMotion in production

• Live migration of virtual machines

• Zero downtime

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nTop vSphere Features

vSphere High Availability (HA)

Resource Pool

X

• VMware HA automatically restarts virtual machines

when a physical server fails

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Top vSphere Features

vSphere Fault Tolerance (FT)

Maximize uptime in your datacenter and reduce

downtime management costs by enabling vSphere Fault

Tolerance (FT) for your virtual machines.

FT provides zero downtime, zero data loss, and

continuous availability for your applications, without the

cost and complexity of traditional hardware or software

clustering solutions.

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nVMware vCenter

VMware vCenter Server, formerly known as

VirtualCenter, is a centralized management tool for the

vSphere environments allowing IT administration.

VMware vCenter Server provides a scalable and

extensible platform that forms the foundation for

virtualization management. VMware vCenter Server:

• Provides centralized control and visibility at every

level of virtual infrastructure

• Unlocks the power of vSphere through proactive

management

• Is a scalable and extensible management platform

with a broad partner ecosystem

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nVMware vCenter

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nVMware vCenter Diagram

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A simple calculation

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Without vmware in a data center

Suppose you got a requirement of 20 server implementation in a data center.

We consider 6 years (2190 days) service life of the servers and the UPS.

Each server requires 600w of power.

Consider,

1 server price = 5,00,000 BDT

i.e. 20 server price= 5,00,000 X 20 BDT

=1,00,00,000 BDT

Power consumption by each server (600 w) in 1 day = 14.4 Unit (KWH)

i.e.Power consumption by 20 server (600 w) in 1 day = 14.4 X 20 Unit

i.e.Power consumption by 20 server in 2190 days = 14.4 X 20 X 2190 Unit

= 630720 Unit

Recommended UPS requirement for 20 servers = 20 KVA

Backup UPS requirement for 20 servers = 20 KVA.

A simple calculation

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nA simple calculation

Without virtualization in a data center

We consider 6 years service life of the servers and the UPS.

Below is the costing for the above requirement

Server investment cost 1,00,00,000 BDT

Power cost (6 Tk per Unit) 37,84,320 BDT

2 unit 20 KVA UPS cost (2x15,00,000 BDT)

30,00,000 BDT

Total 1,67,84,320 BDT

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nA simple calculation

With VMware in a data center

Suppose you got a requirement of 20 servers. Each server requires 600w of

power. We consider 6 years (2190 days) service life of the servers and the

UPS.

You can implement 20 server on only 4 physical servers.

Consider,

1 server price = 5,00,000 BDT

i.e. 4 server price =(5,00,000 X 4) BDT

=20,00,000 BDT

Power consumption by each server (600 w) in 1 day = 14.4 Unit (KWH)

i.e. Power consumption by 4 server (600 w) in 1 day = 14.4 X 4 Unit

i.e. Power consumption by 4 server in 2190 days = 14.4 X 4 X 2190 Unit

= 126144 Unit

Recommended UPS requirement for 4 servers = 6 KVA

Backup UPS requirement for 4 servers = 6 KVA

VMware license price for 8 processor + 1 vCenter Server

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nWith VMware in a data center

We consider 6 years service life of the servers and the UPS.

Costing for the above requirement

Server investment cost 20,00,000 BDT

Power cost (6 Tk per Unit) 7,56,864 BDT

2 unit 6 KVA UPS cost (2x6,00,000 BDT)

12,00,000 BDT

VMware License Price(with advanced features like vMotion, HA, DRS etc. feature is considered)

34,00,000 BDT

Total 73,56,864 BDT

Save in 6 years 94,27,456 BDT

A simple calculation

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My Experiences

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Q & A