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1. Citrix Consulting - Best Practice Series
Design - key concepts and approaches
for designing your desktop virtualisation
solution
Date 27th October 2011
Simon Jackson, Architect, Citrix Consulting Services
The webinar will start at 3:00pm (BST)
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2. http://blogs.citrix.com/author/patricki/
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3. Design - key concepts and
approaches for designing your
desktop virtualisation solution
Simon Jackson
Architect – Citrix Consulting

4. • Analysis Recap
• Design Overview
• Design Components
• Design Considerations
• What’s Next
• Q & A
Agenda

5. • Application Analysis
• User Segmentation
• Capabilities Assessment
• High Level Design
• Transformation Roadmap
• High Level Project Plan
• PoC outcomes
Analysis Recap

6. • Features & Benefits
• Constraints & Limitations
• Ideal vs Reality
Design Requirements

7. • What is it?
• Architectural / Detailed Design
• Configuration Guides
• Operational Guides
• Implementation Plans
• Test Plans
• Detail / Scope
• Responsibilities
• Reference Architectures
Design Overview

8. • What is it?
• Architectural / Detailed Design
• Configuration Guides
• Operational Guides
• Implementation Plans
• Test Plans
• Detail / Scope
• Responsibilities
• Reference Architectures
Design Overview

9. • Desktop Delivery
• Image Management
• Application Delivery
• Application Management
• End Point Devices
• Receiver, Authentication
• Networks
• Bandwidth, Latency, Gateways, Firewalls
• Look & Feel
• Policy, Preference, Personalisation
Design Components
• Compute Hardware
• Server Virtualisation
• Storage Services
• Network Services
• File Services
• Database Services
• Authentication Services

10. Desktop Delivery

11. Desktop Delivery

12. Image Delivery Considerations
Machine Creation Services Provisioning Services
Deployment Uses hypervisor APIs
Integrated desktop creation wizard
Requires additional servers
Integrated desktop creation wizard
Hypervisor Smaller resource pools Maximize resource pools (16 servers per
pool)
Network Minimal High
Storage • Higher storage CPU utilization
• Generates Read/Write IOPS
(50%50%)
• Averages of 16.4 IOPS per desktop
• 20% lower CPU utilization on storage
• Generates mostly Write IOPS
(10%/90%)
• Averages of 10 IOPS per desktop
FlexCast Model Hosted VDI Only Any except Offline/Local VM
Change Control No special considerations for VM
updates
Extra steps required if updates includes
network drivers

13. Image Delivery Considerations
Machine Creation Services Provisioning Services
Deployment Uses hypervisor APIs
Integrated desktop creation wizard
Requires additional servers
Integrated desktop creation wizard
Hypervisor Smaller resource pools Maximize resource pools (16 servers per
pool)
Network Minimal High
Storage • Higher storage CPU utilization
• Generates Read/Write IOPS
(50%50%)
• Averages of 16.4 IOPS per desktop
• 20% lower CPU utilization on storage
• Generates mostly Write IOPS
(10%/90%)
• Averages of 10 IOPS per desktop
FlexCast Model Hosted VDI Only Any except Offline/Local VM
Change Control No special considerations for VM
updates
Extra steps required if updates includes
network drivers

14. How Many Do I Need?
Desktop Images
• Updates
• Gold
• Production
• Test/UAT
• Maintenance
• Based on the user’s needs
• Different OS requirements?
• Different application sets?
• Different configurations?
Image 1 Image 2
Operating System Windows 7 Ent Windows 7 Ent
vCPU 1 vCPU 2 vCPU
Memory 1.5 GB 3 GB
vDisk Size 20 GB (Fixed) 20 GB (Fixed)
Hypervisor tools √ √
Citrix User Profile
Manager
√ √
Adobe Shockwave /Flash
Player
√ √
Microsoft Silverlight √ √
Antivirus √ √
Microsoft Office 2010 √ √
Application #1 √ √
Application #2 √
Application #3 √

15. Application Delivery
• Eliminates app conflicts
• Enables user mobility
• Seamless experience
Virtualised Apps VM Hosted Apps
• Ensures app compatibility
• Reduces validation cycles,
faster time to market
• Apps that won't run on TS,
require special devices or
consume lots of resources
Server Hosted Apps
• Best TCO – 50% savings
• Highest security
• Any device, anywhere
• Minimal bandwidth
Hosted virtual desktops,
VMs or blade PCs

16. Application Delivery
Application
Categories
Common Apps Standalone Apps Resource
Intensive
Technically
Challenging
Description
Common apps
needed by all
users
Custom built apps
Frequent Updates
Uncertified TSE
support
Have heavy
system
requirements
Large, complex
with many parts
and dependencies
Example
Microsoft Office,
Adobe Acrobat,
Browser
CAD/CAM, data
processing
Epic, Cerner, SAP
Primary Delivery
Method
Installed
in base build
Streamed or
App-V
VM Hosted Apps Siloed on XenApp
Alternative
Delivery Method
Streamed or
App-V
Installed
in base build
Blade PC VM Hosted Apps

17. XenApp Connector for Configuration Manager 2007 R2
• Install and publish XenApp and App-V packages
to XenApp servers within ConfigMgr console
• Offer integrated view and management of all
enterprise and XenApp applications
• Extend reach of System Center applications
to more users, devices and access scenarios
• Leverage System Center unified management
console to deploy applications and updates to
XenApp servers without impacting user sessions

18. Corporate Devices
• Windows PCs
• Kiosk PCs
• Thin Clients
Unmanaged Devices
• Apple Macs
• Tablets
• Smartphones
• Home PCs
End Point Devices

19. • Site Topology
• Data Centres, Head Offices, Branch Offices, Remote Workers
• Place the Apps near the Data
• WAN Optimisation
• Firewalls & Gateways
Networks

20. • Site Topology
• Data Centres, Head Offices, Branch Offices, Remote Workers
• Place the Apps near the Data
• WAN Optimisation
• Firewalls & Gateways
Networks

21. Areas for Consideration
• Availability & Recovery
• Performance & Scalability
• Security & Administration
• Management & Monitoring
Design Considerations
Supporting Infrastructure
• Compute Hardware
• Server Virtualisation
• Storage Services
• Network Services
• File Services
• Database Services
• Authentication Services

22. • Hardware Redundancy
Availability & Recovery

23. • Service Availability
• Load Balancing / Clustering / Mirroring
Availability & Recovery
XenApp
5
XML
Brokers XenApp
6
XML
BrokersWeb
Interface
NetScaler
(HA
Pair)
VIP VIP VIP
Shared
Storage
Active Passive
Cluster
Name

24. • Disaster Recovery
• Backup / Restore
• Site Recovery
Availability & Recovery

25. • Disaster Recovery
• Backup / Restore
• Site Recovery
Availability & Recovery
Data
Centre
A
Data
Centre
B
ReplicationGSLB

26. • User Density
• Application Usage
• Modular Architecture
Performance & Scalability

27. • Scale Out
• Scale Up
Performance & Scalability

28. • Idle / Average / Peak
• Boot Storm
• Logon Storm
Performance & Scalability

29. • Idle / Average / Peak
• Boot Storm
• Logon Storm
Performance & Scalability

30. • End User Experience
Performance & Scalability

31. • Operational Teams
• Delegated Administration
• Configuration Logging
• Security Features
• Encryption
• Strong Authentication
• Impact to Existing Tools
• Anti-Virus
• Intrusion Detection
• Desktop Lockdown
• User Admin Rights
• User Installed Applications
• Follow Me Data
• Un Managed Devices
• Data Leakage Prevention
Security & Administration

32. • Operational Teams
• Delegated Administration
• Configuration Logging
• Security Features
• Encryption
• Strong Authentication
• Impact to Existing Tools
• Anti-Virus
• Intrusion Detection
• Desktop Lockdown
• User Admin Rights
• User Installed Applications
• Follow Me Data
• Un Managed Devices
• Data Leakage Prevention
Security & Administration

33. • Uptime, Events & Alerts
• Capacity Planning
• Troubleshooting
• EdgeSight
• HDX Monitor
Management & Monitoring

34. • Corporate Policy
• Corporate Preference
• User Personalisation
• Printing
• HDX Media / Flash
• HDX 3D / 3D Pro
Look & Feel

35. • Corporate Policy
• Corporate Preference
• User Personalisation
• Printing
• HDX Media / Flash
• HDX 3D / 3D Pro
Look & Feel

36. • Peer Review
• Double check all your design requirements
• Do you have justifications for the decisions you’ve made?
• Can it be understood by someone else?
• What still needs to be tested (in Build/Test phase)?
Is your design complete?
Citrix Confidential - Do Not Distribute

37. • Sign-up and watch the rest of our consulting webinar series!
www.citrix-download.com/webinar/consulting
• Desktop Virtualisation Primer
• Establishing business priorities and mapping these to your Desktop
Virtualisation project
• Analysis - understanding your existing IT infrastructure
• Design - key concepts and approaches for designing your desktop virtualisation
solution
• Build/Test - validating your design and making improvements
• Rollout - going live and operational with your virtual desktops
What should you do next?

38. Other great web links
• http://www.citrix.com/desktoptransformation
• http://flexcast.citrix.com/
• http://bit.ly/XDHandbook
What should you do next?

39. Success Accelerator for XenDesktop
Create your project today!
www.citrix.com/successaccelerator
Free, customized, step-by-step implementation guidance online
• Peer Benchmarks. Compare your project
against thousands of other projects in the
Success Accelerator community.
• Best Practices. Use Citrix best practices to
make informed decisions based on real-world
XenDesktop implementations.
• Customized Resources. Get custom-
generated, step-by-step XenDesktop design,
installation and rollout instructions and
resources.