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Virtualization With VMware or Hyper-V: What You Need To Know

Tom BittmanGartner Webinar25 November, 2009

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Virtualization With VMware or Hyper-V: What You Need To Know

Tom BittmanGartner Webinar25 November, 2009

Server Virtualization Myths

Myth: Virtualization is a commodityFact: Virtual infrastructure technologies drive management

technologies that drive private cloud architectures that determine cloud computing strategies

Myth: It's already commonFact: Only about 16% of workloads are running in virtual

machines today — about half by YE2012; the fastest growing market today is small business

Myth: It's primarily about saving money.Fact: Large enterprises virtualized to save money, but later

surveys show that the key is agility; small enterprises more focused on ease of use, packaging, DR.

Key Issues

1. How is the market adopting server virtualization?2. How should users select, deploy and manage

server virtualization technologies? 3. How will server virtualization technology evolve?

IT virtualization is the abstraction of IT resources in a way that masks the physical nature and boundaries of those resources from resource users.

Virtual Machines: Moving from Niche to Mainstream

Percentage of Installed x86 Workloads Running in a VM

0%

10%

20%

30%

40%

50%

60%

2005 2006 2007 2008 2009 2010 2011 2012

2% 4%7%

12%

19%

28%

38%

48%

• Large enterprises started sooner –global 500 (G500) are perhaps 25% virtualized

• Small-to-midsized businesses (SMBs) started later, and tend to be less virtualized

• SMBs are virtualizing very fast – will exceed G500 penetration in 2009 or 2010

Server Virtualization in Small to Midsized Businesses

2009 survey of 1,394 companies with 100-999 employees (roughly equal number of companies per country)

No plans

Starting in 2009

Started before 2009

Low priority

Medium priority

0%

20%

40%

60%

80%

100%

High priority

Q. To what extent is x86 server virtualization implementation a

priority for your organization in 2009?

Aus

tralia

Ger

man

yU

.K.

U.S

.R

ussi

aC

hina

Fran

ceIn

dia

Bra

zil0%

20%

40%

60%

80%

100%

Q. Has your organization started to invest in virtualization or does it plan

to invest in virtualization during 2009?

U.K

.U

.S.

Aus

tralia

Ger

man

yFr

ance

Bra

zil

Indi

aR

ussi

aC

hina

Virtual Machine Installed Base and Growth Projections

2008(5.8M)

Microsoft8%

Citrix2%

VMware89%

Others1%

Virtual Iron1%

2012(58M)

VMware65%

Microsoft27%

Citrix6%

Red Hat2% Others

<1%The installed base of virtual machines

will grow 10X in four years

x86 Server VirtualizationMarket Landscape

• SUSE Linux and Xen• Building around

PlateSpin for management offering

• Need alliance?

• Favors Oracle VM with Oracle software

• Strength in Oracle stack, but weak market appeal outside

• Focused on KVM virtualization (RHEL-based)

• Inclusion with Windows, SCOM management synergy

• Popular for Windows-only environments –mainly SMB

• Promoting heterogeneity

• Successful niche with Virtuozzo containers, especially with Linux and service providers

• Market and technology leader

• Promoting private clouds and cloud migration

• Expanding virtualization management capabilities – moving up the stack

Coming Soon:Magic Quadrant

• Leading provider of Xen-based virtualization

• Strategy includes managing Hyper-V

• Success with existing Citrix customers, opportunity with service providers, mixed and Linux enterprises

VMware or Microsoft?By 2012, at least 25% of the virtual machine installed base

in enterprises will be Microsoft Hyper-V.

Reasons to choose Microsoft:• Smaller deployment (<100 VMs)• Server virtualization is primarily

being used for less-critical servers• Exclusively or primarily using

Windows operating system• Heavy user of Microsoft

management (Systems Center)• Low cost more important than

features• Simplicity in managing a mixed

physical server and virtual server environment important

Reasons to choose VMware:• Existing investment in VMware

skills, technology, automation• Large deployment (>200 VMs)• Low tolerance for downtime• Requirement for high density

of VMs per server• Mix of server operating systems• Maturity and features more

important than low cost• Building a VMware-centric private

cloud infrastructure and the vCloud initiative are attractive

Sweet Spots for the Major Virtualization Players

Enterprise

Service Provider

High-density, few apps

Large

Small

Expose VMs

Windows

Linux

Mixed

• Large Enterprise: Largest opportunities addressed today by Citrix and VMware

• Small Enterprise: The largest opportunities addressed today by Microsoft

• Service Providers:The largest opportunities addressed today by Citrix, Novell and Red Hat

Heavy Oracle

Heavy Linux

Mixed

Major 2009 Industry AnnouncementsAnnouncement Advice, Ramifications

• Serious alternative, especially for service providers, Linux and mixed environments

• KVM-based rollout (RHEV) late 2009

• Momentum — Essentials is now key — consider in Linux or mixed environments

• XenServer free• Essentials for Xen, Hyper-V

• Use when Oracle is managed separately, and sharing outside Oracle not critical

• Acquisitions of Sun (proposed) and Virtual Iron

• Live migration fills big gap, large single point of failure still concern — but not for SMBs

• Hyper-V and SCVMM R2 (including live migration)

• Continues to push boundaries (now I/O performance and so on), price is "only" major issue

• vSphere 4.0 and pricing• Acquired SpringSource

• Not as important or differentiated as Parallels Virtuozzo Containers

• Parallels Server delivery in late 2009

What’s Big in VMware vSphere 4.0 and Microsoft Hyper-V/SCVMM R2

• I/O performance (direct I/O)• Host scalability: 64 cores, 1 TB,

256 VMs• VM scalability: 8 cores, 255 GB• Thin provisioning, hot disk extend,

volume grow• Distributed switch• Network Vmotion• vCenter

• Host profiles and Orchestrator• Manage 300 hosts, 3000 VMs• Linked mode – manage up to

10,000 VMs• Distributed Power Management• Fault tolerance• VMsafe and vShield Zones• Hot add CPU, memory

• New packaging: Essentials through Enterprise Plus

• Live migration• Processor compatibility (software)• Host scalability: 64 cores, 1 TB,

384 VMs• VM scalability: 4 cores• Clustered Shared Volumes

(multiple VMs per LUN)• Core parking• SCVMM R2

• Quick storage migration (2 min)• Hot add/remove storage• Live migration queuing• Host maintenance mode

Heterogeneous Virtual Machines?Which virtual machine solution are you using for x86 servers now?

(n=106)

VMware69%

Microsoft1%

Other combination

8%

Citrix1% Others

8%

None4%

VMware and Microsoft

10%

Which virtual machine solution will you be using for x86 servers in 2010?

(n=123)

VMware19%

Microsoft6%

Other combination

23%

Citrix4%

Others8%

VMware and Microsoft

40%

Data Center Conference, 12/2008

Best Practices: Starting to Virtualize Servers

Start small

Be application smart

Require rapid ROI

But think agility

Butthink big

Pool well

Operationalizing Virtualization: Mind Your Porridge!

Assets/Configuration• Don’t wallpaper over

problems• Expect higher demand,

more transient usage• Manage the speed

(approvals, quotas, chargeback, reporting)

• Don’t forget offline “assets”

• Dependency management gets harder

• Descriptive metadata will evolve

• Be strategic –cloudsourcing is coming

Funding/Chargeback• Virtualization<>”free”• From project-based to

usage-based – a synchronous asset buying

• Account for all usage, expose simplicity (less dynamic, less detail, more predictable)

• Build metrics that are not dependent on physical hosts – and lead to external cloud alternatives

Performance/Capacity• Merging: Incremental,

asynchronous capacity changes

• Shift to holistic capacity planning

• VM placement important – but don’t over-analyze, or over-optimize

• Beware of VM performance overhead, and VM resource competition

• Descriptive metadata will evolve

• Too cold and you won’t achieve potential savings• Too hot and you’ll have VM sprawl, cost overruns, breakdowns • Be proactive, and plan ahead to be just right

Securing Virtual Servers: Issues and Possibilities

IssuesVirtualization introduces new “platform” that must be included in patch, configuration and vulnerability managementOffline VMs need to be kept up-to-date and protectedEarly virtual switches are not visible to traditional network-based securityVMs will become mobile –security policies that are not mobile (e.g., tied to IP or MAC addresses) are broken

PossibilitiesSecurity appliances shifting from physical and proprietary to virtualVM state inspection becomes a new security opportunity, without agents in the virtual machinesSecurity decoupled from workloads requires security metadata, enables adaptability –including to the cloud

Virtualization Is a Modernization Catalyst and Unlocks Cloud Computing

Attributes of Cloud Computing

Service-BasedScalable and Elastic

SharedMetered By Use

Internet Technologies

• Abstracts implementation from users

• Forces service-level discussion• Technology hoster becoming

service provider

• Enables faster delivery and resource changes

• Enables hardware sharing• Enables economies of scale

• Software pricing and licensing models broken – some kind of usage-based model needed

• Usage tracking and chargeback to manage usage

Virtualization Leads Inexorably to Cloud Computing

Stage 1:Server

Virtualization

• Hardware efficiency

• Capital cost• Deployment

speed

Stage 2:Distributed

Virtualization

• Flexibility• Automation• Operational

cost• Reduced

downtime

Stage 3:Private Cloud

• Self-service• Service

standardization• IT as a business• Usage-based

pricing

Stage 4:Hybrid Cloud

• Capital and operational cost

• Low barrier to entry

• Total usage flexibility

Virtualization Enablers and Different Paths in the Cloud

Windows Azure

Platform

vCloud

Public cloud

hosters

Public cloud

hosters

?Dynamic IT, and Dynamic

Datacenter Toolkit

vSphere

Action Plans

CIOs and I&O leaders should …• Now

- If you haven't started virtualizing, it's time to start, and you havea number of alternatives

- If you have virtualized, perform a health check on your processes, management and security

• Your Next 90 Days- Develop a private cloud strategy and ensure your virtualization

plans match- If you are a Hyper-V customer, consider an upgrade to R2- If you are a VMware customer, consider an upgrade to vSphere 4.0

• Your Next 12 Months- Develop a cloud strategy and ensure your

virtualization plans match

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Coverage includes:• IT Operations• Virtualization • Storage• Cloud Computing• Servers & Operating Systems• The 21st Century Data Center• Business Continuity Management & Disaster Recovery• Cost Optimization

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Virtualization With VMware or Hyper-V: What You Need To Know

Tom BittmanGartner Webinar25 November, 2009