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SYN118 - Desktop as a ServicePerils and Payoffs of an Outsourced DaaS Initiative
May 8th 4:00PM Ballroom E
Paul StanselSenior Engineering AdvisorAetna
Introduction
In 2012, Aetna began a major initiative to look at Desktop as a Service (DaaS) with a goal of a platform that was: • Resilient• Easily expandable• Cost effective Today, we will discuss the growing pains involved in DaaS both from our experience and the industry as a whole.
Who Am I?
Architect and implementer of Aetna’s 40,000 seat internal XenApp/XenDesktop platformLead SME for Aetna’s 15,000 seat DaaS design17 years working with Citrix productsAuthor and editor Owner of CitrixTips.com
Your Takeaways Today
What is DaaS?Why did Aetna want to implement a DaaS program?What are some options for hosted DaaS?5 keys we found to picking your DaaS providerWhy we kept our DaaS in house and on site!
At the most fundamental level DaaS is a Windows desktop you pay someone else to provide. DaaS is just a business decision.
“IDC expects the desktop-as-a-service market to grow to a healthy $661 million by 2016…”
- Brett Waldman, IDC Analyst
What is DaaS?
What DaaS Isn’t
DaaS is not Infrastructure as a Service (IaaS) unless you pay for it to beDaaS is not a security toolDaaS is not always easier than doing it yourselfDaaS is not necessarily cheaper… it is however a different kind of cost
DaaSUser
Domain
Application
Database
Flavors of DaaS
When you talk to a DaaS provider these are the 3 “flavors” they are going to try and sell you:
User
User
User
UserUser
User
User
DaaS’d if You do DaaS’d if You Don’t
SPLA – Service Provider License Agreement only covers Server OS!
So How do I get VDI?
The only licensed option to do a VDI setup in a DaaS implementation is to BYOL (Bring Your Own License).
Microsoft requires you to maintain hardware separation if you want to BYOL. That means separating storage, servers, etc;
So What About Licensing BYOD?
You need a VDA license. The only devices exempt from the VDA license requirement are corporate owned and managed Windows devices. Everything else needs one.
To Summarize Licensing
Microsoft doesn’t allow SPLAs to provide Desktop OSesSPLA for Office only applies on Server OSesBYOL requires you to use your own license infrastructure and maintain complete hardware isolationOnly corporate owned Desktops have the requisite VDA license as part of SLAEverything else is going to cost you PER DEVICEContact your Microsoft rep for additional licensing information
Aetna’s Path to DaaS
Reduce costs Speed to deploymentDisaster RecoveryBurst growth supportSeamless integration
As a project team beginning in 2012 we were tasked to find a DaaS solution that met the following goals:
Speed to Deployment
Can purchase based on capacity requirements at a given point in timeDon’t have to buy in bulk for capacity requirements 6 months out just to get a better priceNew technologies can be rapidly deployed on the DaaS infrastructure without impact to the production environment
DaaS as a Disaster Recovery Tool
Lack an existing DR for your VDI? DaaS might fit the bill!
Fixed monthly costsEconomies of scaleOn or off site DRKnow your users!
Seasonal or Burst Growth
Year round infrastructure is a waste of resources Burst or seasonal growth Overflow of internal infrastructureM&A SupportLimited time frame projects
Seamless Integration
Worked within Aetna’s existing processes and proceduresCould be presented at the user level seamlesslyDid not require a radical architecture changeFit the continued goals we had around virtualization as a whole
Citrix Service Provider Program
DaaS providers that choose to be a part of the CSP programCSPs extend their SPLA features with Citrix products and special licensing Subject to SPLACitrix + service provider working in concertValidated designs from Citrix
VMWare Horizon DaaS
Based on the Desktone acquisitionRuns on VMware’s vCloud serviceAllows for a hybrid hosting solution of on and off premise desktopsSupports BYOL Single provider vs multiple technologies
Amazon WorkSpaces
2012 R2 Server desktops (SPLA)Basic and Performance desktop option “Fully managed” in that they turn on auto update for youXenDesktop/XenApp 7.5 allow direct provisioning on AWS
5 Keys to Pick Your Provider
1) What are you getting?2) What are their SLAs?3) Where are they located?4) Do you have the right to audit?5) How flexible are they?
How We Overcame the DaaS GapThe first step in designing the appropriate DaaS solution is to prioritize your goals. Most important to us was the lack of user impact.
Given our applications and data requirements the only solution was an on-premises DaaS environment.
When DaaS Becomes IaaS
Desktop as a Service very quickly became Infrastructure as a Service!
But who owns what?
Pros and Cons of On Premise DaaSPros
Still get a per seat costStill can offload support and infrastructure management to a 3rd partyCan grow at the pace you dictate3rd party expertise for new initiativesLocal connection between the desktop and appsGives you segregation from any other DaaS client
ConsRequires good management and division of labor to actually save on soft costsYou have to have the space to provideRequires a vendor willing to be flexible in the configuration and supportForecasting is MUCH more importantYour infrastructure changes are THEIR infrastructure changes
Lessons Learned
Define your rolesTest and test againMap out technology differencesMarketing is important
How Successful is our Daas Initiative?
23,000 in-house VDI we own and manage15,000 DaaS VDI to provide new capacity and DR infrastructure Integrated XenDesktop 7.1 farms with management scopes defined for each supporting groupActive user migration process to reduce the size of in-house managed VDI through 2016
The Future of DaaS?
My best guess…More hybrid solution focusDemand for Microsoft to change their licensing modelDaaS quickly fades to a component of IaaS for large corporationsThe gradual decoupling of the apps from the desktop pushes us into a whole new model
WWMD - What Will Microsoft Do?
Google “Project Mohoro” for Microsoft DaaS referencesBest guess – Will follow the model of VMware only with HyperV and allow Citrix integration
Other Resources
http://blogs.citrix.com/tag/desktop-as-a-service/
http://blogs.forrester.com/category/daas
http://workspace.citrix.com
Questions?Contact info:Paul@paulstansel.comhttp://citrixtips.com@pstansel
©2014 Aetna Inc. All rights reserved.
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