Vmware Overview - Presentation

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Vmware Overview – Wipro Technologies

VMWARE OVERVIEW



Traditional Infrastructure Overview



What is Virtual Infrastructure?



VMware Virtualization Product Line

Focus is Here



Virtual Infrastructure Overview



ESX Server: a High-performance platform for virtual machines

Virtual Center: a management front-end to ESX Servers and GSX Servers, and their virtual machines Supports VMotion, which allows moving running

virtual machines between ESX Servers



Traditional Vs Virtual Infrastructure

Physical Machine Hard to move Difficult to copy Bound to a specific set of hardware

Virtual Machine Ease to move and copy

Encapsulated into files Independent of physical hardware

Easy to manage Isolated from other virtual machines

running on the same physical hardware Insulated from physical hardware changes



ESX Server Architecture

Memorynic

nicNICdiskCPU

x86 SMPHardware

ConsoleOS

VMM

GuestOS

GuestOS

GuestOS

GuestOS

VMkernelScheduler

MemoryMgmt

SCSIDriver

EthernetDriver

VMMVMMVMM



x86 SMPHardware

High Performance Network

VMwareServerVMM

NIC

Stub Driver

Shared Device

NIC specific drivers

•Ethernet and Gigabit Ethernet• Each virtual adapter has its own MAC address• No world switch !

VMware Ethernet Driver

NIC

Exclusive Device

VMM VMM

VMware Ethernet Driver

VMM

Stub Driver

Stub Driver



x86 SMPHardware

Intra-system networking

VMwareServerVMM

Stub Driver

Stub Driver

Stub Driver

NIC specific drivers

• Executes at memory speed

Stub Driver

Virtual Network



Why use virtual machines?

OS and applications are freed from physical hardware Hardware maintenance is easier Fewer gotchas on hardware upgrade New options in disaster recovery

Easy to image a virtual machine Configure OS and applications once, clone many times Back up a virtual machine by backing up its few constituent

files Many VMs can run on the same physical server

Greater resource utilization Each is unaffected by the others Fine-grained tuning options



GSX Vs ESX

Hosted (VMware workstation and ACE, GSX Server) Maximum device

compatibility Installs like an application Lower price point

Native (ESX Server) Maximum performance Lowest overhead Dynamic resource controls Virtual SMP



GSX Vs ESX

GSX Hosted on windows or Linux Maximum hardware

compatibility Up to 3.6GB RAM per VM Up to 64 VMs per GSX Server Lower pricing

ESX Runs Natively Maximum scalability and

performance Up to 3.6GB per Virtual

machine Virtual SMP Support Up to 80 VCPUs per ESX

Server Advanced memory

management and dynamic resource allocation

Allows VMotion Uses the multiple-access

VMware File System (VMFS)



vManage products

VirtualCenter: a management front end to ESX Servers and GSX Servers ,and their VMs A Windows application with a database back-end Uses:

Centrally manage all VM images Deploy new VMs using standardized templates Monitor VMs state and performance Manage access to VMs with one point of control

VMotion: move running VMs from one server to another with no downtime



Virtual Infrastructure Management



Virtualizing a Network Interface

Host OS

PC HardwarePhysical NIC

VMApp

VMDriver

Guest OS

VMM

Phy

sica

l Eth

erne

t

NIC Driver

NIC Driver

Virtual Bridge

Virtual Network Hub



vTool product

VMware P2V Assistant Takes a snapshot of an existing phsical system Transforms it into a VMware virtual machine

Suitable for use with ESX Server, GSX Server, or Workstation

Supported Source OSes: Windows NT 4.0 with Service pack 4 or later Windows 2000 with Service pack 1 or later Windows Server 2003 Windows XP



Use cases for VMware products Server consolidation

Migrate underutilized physical machines into virtual machines Spend less money on maintenance and operation

Disaster recovery Use virtual machines as lower-cost standbys for physical

machines Use storage Area Networks to physically separate storage from

the production data site Testing and development

Maintain libraries of preconfigured virtual machines Spend less money on maintenance of multiple configurations

Desktop deployment Use VMware ACE to give users consitent, time-limited

environment



Virtual Center



VMotion requirements

CPU’s must be identical ESX Server must see same LUNs Both ESX Servers must have VMotion

license Network labels must be consitent VMotion network must be GigE



VirtualCenter Farm Guidelines Group hosts under single administrative

control Group hosts to form a single pool of

resources Group hosts that meets VMotion

requirements Logically group VMs into VM groups eg, by

business unit or function



ESX Server sizing - tips

If a VM’s application is extremely sensitive to a resource, dedicate a resource to that VM Examples:

Consider dedicating a disk LUN to a VM Consider dedicating a CPU and NIC to applications with

low-latency requirements

Consider dedicating a NIC to an application with high security requirements



VMFS and SAN best practises Each LUN should have the right RAID level and

storage characteristic for applications in VMs that will use it

One LUN should contain only one single VMFS volume

If multiple VMs accessing same LUN, use disk shares to prioritize VMs

Keep test VMs on separate VMFS volumes from production VMs

Keep virtualcenter templates on separate VMFS volumes from virtual disk files

Spread I/O loads over available paths to storage



Boot from SAN

ESX Server supports installation into and boot from SAN disk arrays

Only certain fibre channel adapters and disk arrays are supported

Deploy boot from SAN When hardware requires it, as on blade

systems When maintenance of local service

console storage is undesirable If easy cloning of service consoles is

desired

Avoid boot from SAN When clustering is required When there is a risk of I/O contention

between service console and VMkernel When the use of clusterin-across boxes

is required When the use of VMFS raw device

mappings is required When additional dependencies between

service console and VMkernel are undesirable



Virtual Infrastructure’s Impact Virtual Infrastructure affects

Storage Architecture Ensure that SAN cloud boundaries match VirtualCenter farm

boundaries and business-function boundaries Network architecture

Connect service console and VirtualCenter to management networks, and virtual machines to production networks

Compute Architecture Treat physical servers as pools of available processing power

Policies Use VirtualCenter roles to match permissions to job functions

Service Level Agreements Use VMotion to meet high-availability expectations



Virtual Machine Manager and IBM Director 4.20

VirtualCenter HostVirtualCenter HostVirtual FarmVirtual Farm

Logical Platform (Virtual Machine)Logical Platform (Virtual Machine)VMware Host (Physical Machine)VMware Host (Physical Machine)

Guest OS with IBM Director AgentGuest OS with IBM Director Agent



VMware on SMP and Blades

2 or 4-way Blades

VMotion

VirtualCenter Console

ESXConsole

ESX Server

ESX Server on 4-16x SMP System VirtualCenter w/VMotion on BladeCenter

Large single system image

Automatic load-balancing of large number of VMs in same system

•Simplified resource sharing & mgmt Lower entry cost for smaller systems

•SCSI disk can be used

Greater resiliency and availability•Multiple 2X/4X blade and ESX instances•“Standby” blade within chassis for availability

Modular scalability•Increased scaling of memory & I/O capacity

Blade form factor advantages•Increased density, standardization, power efficiency

Workload balancing with mixed blades•e.g. temporarily migrate VM to higher performance blade to complete task more quickly

ESX ESX ESX ESX

x445 BladeCenter



Scalability with VMwareBenefits scale across deployment size, server form factors

4 8 16 12864

Number of Virtual Machines

Nu

mb

er o

f P

hys

ical

CP

Us

4

8

16

32

64

128+

2-4 CPU2-4 CPUSMP SMP ServersServers

ESX ServerESX Server Choose the right platform for each customer

512+

Mix and match form factors

ESX ServerESX Server+ V-SMP+ V-SMP

MultipleMultipleSMP ServersSMP Servers x445 Serversx445 Servers

BladeCentersBladeCenters16-100s+ CPUs16-100s+ CPUs

MultipleMultiplex445 Serversx445 Servers

VirtualCenter SuiteVirtualCenter Suitew/ VMotionw/ VMotion

SAN StorageSAN Storage



Virtualization on BladesVirtualization increases hardware utilization to 70% or higher so that solution with the same compute power requires fewer bladesMigration to higher spec bladesFacility, power, and cooling savingsServer support and maintenance savings

• Instant provisioning

• Less downtime for maintenance

• Dynamic resource redeployment

• Application migration to different hardware without having to reinstall



Deploy

ProductionVM

ProductionVM

ProductionVM

ProductionVM

Develop-mentVM

Scenario #1: Testing and Deployment

QAVM

TestDevelop



Scenario # 2:Server Consolidation

Web Server

App Server

Web Server

App Server

Database Server

Database Server

App Server

App Server

Web Server

Web Server

VMware MultipleWorlds + Physical Hardware



Scenario #3: Application Compatibility Some applications require their OS Some solutions require multiple applications Appliances provide solutions

VMware in Appliances



- Q & A -

Vmware Overview - Presentation

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later windows server

gsx server lower pricing

physical hardware changes

gsx servers

running vms

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