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Module 15: Server

Virtualization Overview

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Module 15: Server Virtualization Overview

• Overview of Server Virtualization

• Overview of Windows Server Virtualization

• Creating a Virtual Environment

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Lesson 1: Overview of Server Virtualization

• What s Server Virtualization!

• "#$ervisor %r&hite&ture

• "#$ervisor '#$es

• (enefits of Server Virtualization

• Server Virtualization S&enarios

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What s Server Virtualization!

A hypervisor:

•Ma# run on )are metal or within a host o$erating s#stem

•Can $resent emulated hardware to guest o$eratings#stems

• solates o$erating s#stem instan&es

Server virtualization enables multiple instances of an

operating system to run on a single computer

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Host OS

VMM

Guest1

Guest2

VMM

Guest1

Guest2

Host OS VMM

Guest1

Guest2

Type-2 !! Type-1 !!Hybri" !!

E*am$les:+VMCL,

E*am$les:Virtual -C andVirtual Server .//5 ,.

E*am$les:Windows ServerVirtualization

"ardware "ardware "ardware

"#$ervisor %r&hite&ture"#$ervisor %r&hite&ture

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!onolithic hypervisor:

• Sim$ler than a modern 0ernel)ut still &om$le*

• Contains its own drivers model

!icro#ernelize" hypervisor:

• Sim$le $artitioning fun&tionalit#

• n&rease relia)ilit#

• 2o third3$art# &ode

• 4rivers run within guests

Hypervisor

! 1$A"min%

! 2 ! &

Har"'are Har"'are

Hypervisor

! 2$(hil"%

! &$(hil"%

irtual-izationStac#

! 1$)arent%

4rivers

4rivers

*rivers4rivers

4rivers

*rivers4rivers

4rivers

*rivers4rivers

4rivers

*rivers

"#$ervisor '#$es

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(enefits of Server Virtualization

Sim$lified su$$ort of older o$erating s#stems

  ,edu&ed hardware &osts through more effi&ient use of hardware

+enefits of server virtualization:

,edu&ed management &osts through less hardware

 

Sim$lified maintenan&e and failure re&over#

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Server Virtualization S&enarios

The server virtualization scenarios are:

• Server &onsolidation

• 'esting and develo$ment

• ,e3host lega a$$li&ations

• ailure re&over#

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Lesson .: Overview of Windows ServerVirtualization

• What s Virtual Server!

• What s Windows Server Virtualization!

• Windows Server Virtualization ,e6uirements

• Windows Server Virtualization eatures

• Windows Server Virtualization %r&hite&ture

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What s Virtual Server!

irtual Server:

• s a h#$ervisor that runs $arallel to the Windows o$eratings#stem 7h#)rid VMM8

• Wor0s with earlier versions of Windows Server

• Stores dis0s in 9vhd files

• Stores &onfiguration settings in 9vm& files

• "ardware devi&es are emulated

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What s Windows Server Virtualization!

,in"o's Server irtualization:

• s a )are metal h#$ervisor for ;3)it editions of the Windows Server.//< o$erating s#stem

• Su$$orts d#nami& resour&e allo&ation

• Su$$orts =.3)it and ;3)it guests

• Su$$orts live migration of virtual ma&hines

"ardware

Windows "#$ervisor

)arent)artition

,in"o'sServer 2.

ApplicationsApplications Applications

(hil" )artition (hil" )artition

OS 1 OS 2

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Windows Server Virtualization ,e6uirements

Soft'are /e0uirements:

• Windows Server .//< Standard Enter$rise or 4ata&enter

• Windows Server .//< ;3)it editions onl#

• Windows Server .//< Enter$rise in&ludes li&enses for u$ to ; virtualizedservers

• Windows Server .//< 4ata&enter in&ludes li&enses for an unlimited

num)er of virtualized servers

Har"'are /e0uirements:

• ;3)it * %M4 2? 7no e*e&ute )it8

> ntel ?4 7e*e&ute disa)le8

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Windows Server Virtualization eatures

eatures of ,in"o's Server irtualization:

• Large memor# su$$ort in VMs

• Multi$ro&essor su$$ort in VMs

• Su$$ort for networ0 offload te&hnologies

• Virtual ma&hine sna$shots

• S&ri$ting interfa&e

• Minimum and ma*imum thresholds for C-@ and networ0

• Offline Virtual "ard 4is0 mani$ulation

• %utomati& failover to a re&over# site

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Windows Server Virtualization %r&hite&ture

-arent -artition

Child -artitionsirtualization Stac#

!Service

,! )rovi"er

!,or#er

)rocesses

irtualizationService

)rovi"ers

$S)s%

Server (ore

Applications

,in"o's3ernel

irtualizationService (lients

$S(s%

H*rivers 4nlightenments

,in"o's Hypervisor

5*esigne" for ,in"o's6 Server Har"'are

7ser !o"e

,in"o's3ernel

)rovi"e" by:

,in"o's

S

O4!

,in"o'sirtualization

3ernel !o"e

!+us

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Lesson =: Creating a Virtual Environment

• "ardware Considerations for Virtualization

• Software Considerations for Server Virtualization

• Management Considerations for Server Virtualization

• What s S#stem Center Virtual Ma&hine Manager!

• What s Aui&0 Migration!

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"ardware Considerations for Virtualization

-h#si&al memor# must )e enough to su$$ort all virtualma&hines at the same time

  -ro&essor &a$a&it# must )e enough to su$$ort all virtualma&hines at the same time

Har"'are consi"erations:

4is0 BO is intensive for 9vhd files and memor# &ontents storedon dis0

 

Multi$le VMs share the networ0 &a$a&it# of the hardware

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Software Considerations for Server Virtualization

'he guest o$erating s#stem must )e su$$orted

Windows Server virtualization &an run o$erating s#stemswithout modifi&ation

Soft'are consi"erations:

"#$ervisor aware o$erating s#stem &an ma0e more effi&ientuse of hardware resour&es

 

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Management Considerations for Server Virtualization

%n MMC sna$3in is used for management

-h#si&al hardware $ro)lems will affe&t multi$le VMs

!anagement consi"erations :

-arent $artition failure affe&ts &hild $artitions

 

Virtual ma&hines &an )e more diffi&ult to monitor

Monitor with S#stem Center O$erations Manager .//

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What s S#stem Center Virtual Ma&hine Manager!

System (enter irtual !achine !anager enables:

• Centralized de$lo#ment and management of VMs

• -la&ement anal#sis

• -h#si&al to virtual &onversion

• Creation of a li)rar# of VM &om$onents• 4elegated self3servi&e $rovisioning

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What s Aui&0 Migration!

)lanne" migration:

• State is saved to dis0 then restored on stand)# server

• 4owntime de$ends on memor# and s$eed of S%2

• 4owntime &an )e onl# several se&onds

8uic# !igration enables !s on a SA9 to be migrate" to a

stan"by server

7nplanne" migration

•State is not saved

•Virtual ma&hine is restarted on stand)# server

•4owntime will )e minutes

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Module ,eview and 'a0eawa#s

• ,eview Auestions

• ,eal3world ssues and S&enarios

• (est -ra&ti&es

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Course Evaluation