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

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Virtualization With VMware or

Hyper-V: What You Need To Know

Tom Bittman

Gartner Webinar

26 August, 2009

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Virtualization With VMware or

Hyper-V: What You Need To Know

Tom Bittman

Gartner Webinar

26 August, 2009

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Server Virtualization Myths

Myth: Virtualization is a commodity

Fact:

Virtual infrastructure technologies drive management

technologies that drive private cloud architectures that

determine cloud computing strategies

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 never

consider saving money the primary reason to virtualize

Myth: It's already common

Fact:

Only about 16% of workloads are running in virtual

machines today — about half by YE2012; the fastest

growing market today is small business

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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.

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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

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Server Virtualization in

Small to Midsized Businesses

Low priority Medium priority

2009 survey of 1394 companies with 100-999 employees (roughly equal number of companies per country)

0% 20% 40% 60% 80% 100% No Plans Starting in 2009 Started before 2009

Q. Has your organization started to invest in virtualization or does it plan to invest in virtualization during 2009?

0% 20% 40% 60% 80% 100% High priority

Q. To what extent is x86 server virtualization implementation a priority for your organization in 2009?

Australia _Germany

U.K. U.S.

Russia China France India Brazil U.K. U.S.

Australia _Germany France

Brazil India

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Virtual Machine Installed Base and

Growth Projections

2008

(5.8M)

Microsoft 8% Citrix 2% VMware 89% Others 1% Virtual Iron 1%

2012

(58M)

VMware 65% Microsoft 27% Citrix 6% Red Hat 2% Others <1%

The installed base

of virtual machines

will grow

10X

in

four years

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x86 Server Virtualization

Market 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

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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

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Major 2009 Industry Announcements

Announcement Advice/Ramifications

• KVM-based rollout (RHEV)

late 2009

• XenServer free

• Essentials for Xen/Hyper-V

• Acquired Sun and Virtual

Iron

• Hyper-V and SCVMM R2

(including live migration)

• vSphere 4.0 and pricing

• Acquired SpringSource

• Parallels Server delivery in

late 2009

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

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

• Use when Oracle is managed separately, and sharing

outside Oracle not critical

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

• Continues to push boundaries (now I/O performance, etc.), price is “only” major issue

• Not as important or

differentiated as Virtuozzo Containers

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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

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Heterogeneous Virtual Machines?

Which virtual machine

solution are you using

for x86 servers now?

(n=106)

VMware 69% Microsoft 1% Other combination 8% Citrix 1% _Others 8% None 4% VMware and Microsoft 10%

Which virtual machine

solution will you be using

for x86 servers in 2010?

(n=123)

VMware 19% Microsoft 6% Other combination 23% Citrix 4% Others 8% VMware and Microsoft 40%

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Best Practices:

Starting to Virtualize Servers

Start

small

Be

application

smart

Require

rapid ROI

But think

agility

But

think big

Pool

well

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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

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Securing Virtual Servers:

Issues and Possibilities

Issues

Virtualization introduces new

“platform” that must be

included in patch, configuration

and vulnerability management

Offline VMs need to be kept

up-to-date and protected

_{Early virtual switches are not}

visible to traditional

network-based security

VMs will become mobile –

security policies that are not

mobile (e.g., tied to IP or MAC

addresses) are broken

Possibilities

Security appliances shifting from

physical and proprietary to virtual

VM state inspection becomes a

new security opportunity, without

agents in the virtual machines

Security decoupled from

workloads requires security

metadata, enables adaptability –

including to the cloud

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Virtualization Is a Modernization Catalyst

and Unlocks Cloud Computing

Breaks Software Pricing

and Licensing

• Fractional use, consolidated

• Dynamic change and

movement

• Vendors realize — just don't

want to be first

Decouples IT from Users

• Enables service-oriented shift

• Enables alternate sourcing

• Culture change

Enables Economies of Scale

• Technology that enables sharing

Enables and Motivates

Chargeback

• From fixed to variable use

• Danger of frictionless computing

Speed and Elasticity

• Low barrier to entry

• Faster deployments

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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

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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

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Action Plans

CIOs and IT operations should …

• Now

-

If you haven’t started virtualizing,

it’s time to start,

and you

have a 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,

upgrade

to R2

-

If you are a VMware customer,

upgrade

to vSphere 4.0

• Your Next 12 Months

-

Develop

a cloud strategy, and ensure your virtualization

plans match

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Upcoming Gartner Infrastructure & Operations Related Events

December 1-4, 2009

Caesars Palace, Las Vegas, NV gartner.com/us/datacenter

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October 5-6, 2009

Royal Lancaster, London, UK europe.gartner.com/datacenter Coverage includes: • IT Operations • Virtualization • Storage • Cloud Computing