Vmware ESX Server1

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CSC Proprietary 2/7/2011 10:48:58 AM008_5849_ER_Gray 1

Welcome to the Virtual World

VMware


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Slide 2

Introduction to Virtualization

Basic concepts

Networking

StorageDifferent Third party and Vmware Products

About VC and Virtual machines

Overview


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Slide 3

Introduction to Virtualization & ESX server 3.0

Virtualization is an abstraction layer that decouples the physical hardware from the

operating system to delivergreaterIT resource utilization and flexibility.

Virtualization allows multiple virtual machines, with heterogeneous operating

systems (e.g., Windows

2003 Server and Linux) and applications to run in isolation, side-by-side on the

same physical machine.

What are Virtual Machines ?

A virtual machine is the representation of a physical machine by software. It has its own

set of virtual hardware (e.g., RAM, CPU, NIC, hard disks, etc.) upon which an operating

system and applications are loaded.


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Slide 4

VMware Hosted Architecture


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Slide 6

What's the difference between ESX and GSX Server .

Whats the difference between ESX 2.X and the latest version ESX 3.0.


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Slide 7

Workstation

For development and testing

Legacy Application and Compatibility

Training and Sales demo Help desk and Technical Support

GSX/ ESX

Server Consolidation

High availability Clusters

Maximum Utilization of Server resources

VMwares Family of Products


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Slide 8

ESX Ranger

VMware Converter

Commonly Used Products in Vmware forOther

Supports


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Slide 9

Components

VMware ESX Server A production-proven virtualization layer run on physical servers thatabstract processor, memory, storage and networking resources to be provisioned to

multiple virtual machines

VMware Virtual Machine File System (VMFS) A high-performance cluster file system for

virtual machines

VMware Virtual Symmetric Multi-Processing (SMP) Enables a single virtual machine touse multiple physical processors Simultaneously

Virtual Center Management Server The central point for configuring, provisioning and

managing virtualized IT infrastructure.

Virtual Infrastructure Client (VI Client) An interface that allows administrators and users to

connect remotely to the Virtual Center Management Server or individual ESX Serverinstallations from any Windows PC.

Virtual Infrastructure Web Access A Web interface for virtual machine management and

remote consoles access


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Slide 10

VMware High Availability (HA) Provides easy-to-use, costeffective high availability for

applications running in virtual machines. In the event of server failure, affected virtual

machines are automatically restarted on other production servers that have spare capacity.


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Slide 11

VMware VMotion Enables the live migration of running virtualmachines from one physical server to another with zero downtime,

continuous service availability and complete

transaction integrity


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Slide 12

VMware Distributed Resource Scheduler (DRS) Intelligently allocates

and balances computing capacity dynamically across collections of

hardware resources for virtual machines


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Slide 13

Networking Architecture

1.) NIC teaming

2.) Port Group


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Slide 14

Sample Example


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Slide 15

Storage Architecture


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Slide 16

VMFS Virtual machine file system ,Its a clustered filesystem that leverages shared storage to allow multiplephysical servers to read and write to the same storagesimultaneously. VMFS provides on-disk distributed locking.

VMX Configuration file VMDK Disk file

Operational Modes

Persistent

Non-persistent (redo logs are discarded)


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Slide 17

Local Stores files locally on an internal or external SCSI device. Fibre Channel Stores files remotely on a Storage Area

Network (SAN). Requires Fibre Channel adapters.

iSCSI (hardware initiated) Stores files on remote iSCSIstorage devices. Files are accessed over TCP/IP network usinghardware-based iSCSI HBAs (host bus adapters).*******

iSCSI (software initiated) Stores files on remote iSCSIstorage devices. Files are accessed over TCP/IP network usingsoftware-based iSCSI code in the VMkernel.Requires a standardnetwork adapter for network connectivity.*************

Network file system (NFS) Stores files on remote file servers.Files are accessed over TCP/IP network using the NFS protocol.

Requires a standard network adapter for network connectivity.

Types of Storage


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Slide 18

VMFS2

VMFS3

Other Specifications

32 ESX Server can be connected to a single VMFS volume

Types of VMFS


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Multipathing in Storage


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Slide 20

Multipathing Policies

Fixed The ESX Server host always uses the preferred path to the

disk when that path is available. If it cannot access the diskthrough the preferred path, then it tries the alternate paths.

MRU : The ESX Server host uses the most recent path to the diskuntil this path becomes unavailable. That is, the ESX Server hostdoes not automatically revert back to the preferred path

:::


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Slide 21

Max of 64GB RAM per ESX and 32Logical CPU per ESX Capable of running 128 VMs per machine.

256 LUN per system(128 during install)

Selective Hardware support

Support for clustering / SAN

High performance File system VMFS

High performance Kernel vmkernel

Console OS Based on Red hat Linux

ESX Server Consolidation


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Slide 22

4 Processor at the max (1,2,4)

4Nic Per VM

16GB of Ram at the Max

Can have 60 disks at the MAX,One disk can have a maxsize of 2TB.

Virtual Machine consolidation

Vmware ESX Server1

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