Dell DDVS Integrated Solution Stack Validation Process

Dell DDVSIntegrated Solution StackValidation Process

Todd Day - Solutions Architect

Dell Product Group- Desktop Virtualization Solutions

Dell Desktop Virtualization Solutions

The Dell Integrated Solution Stack (ISS)

2

Efficient data center

Windows Applications

• All inclusive hardware, software, services, support

• Dell removes the burden of design and configuration – delivering a right-sized, scalable solution

• Reduces deployment time

• Open architecture, linear scaling approach

• ~50,000 hours invested in integration testing the stack, plus partner testing

Customermanaged

Fully offsiteDell managed

On premiseDell managed

* Available in future release

HypervisorVMware, Microsoft*

Desktop Virtualization SWVMware view or Citrix XenDesktop

3 Dell Desktop Virtualization Solutions

Basic User WorkloadSimple task worker workload.

Non-personalized image.

Kiosk or call center use case

Application stack is static.

Anti-Virus enabled

Premium User WorkloadHeavy graphics and content creation.

Extensive Image personalization.

Advanced knowledge worker profile.

Anti-Virus enabled

ISS Workloads Characterized

Dell Integrated Solution Stacks

Standard User Workload

Office productivity apps.

Some Image Personalization

Typical knowledge worker profile.

Anti-Virus enabled

1 vCPU

1 GB of Memory

5 GB User Data

Shared OS Template

Windows 7

1 vCPU

1.5 GB of Memory

10 GB User Data

Shared OS Template

Windows 7

1 vCPU

2.5 GB of Memory

20 GB User Data

Shared or Dedicated OS Template

Windows 7


The ISS Workload Validation• Login VSI consultants load simulation toolset was the load

generation tool.

• Liquidware Labs Stratusphere utilized to validate end user performance.

• The Dell Global Solutions lab ran four tests against each user workload (Basic, Standard and Premium).

‐ Test 1 = Pilot to ensure test are successful and valid.‐ Test 2 = Single Server Load Test‐ Test 3 = Multi-Server Load Test to ensure linear scaling.‐ Test 4 = Complete ISS Pod Test to determine maximum.

• We utilize these workloads to establish the high water mark for the number of sessions we can run on each bundle while maintaining sufficient performance.

• Testing methodologies were:‐ Sequential testing is for single-host VDI testing. ‐ Parallel testing is designed for large-scale testing of the full ISS

bundle.


ISS workload design & validation for success Why do we need a VDI image design strategy and validation process?

• Common issues experienced by customers adopting VDI:‐ IO bottlenecking in the SAN due to poor AV design. ‐ Boot & log off storms causing IO bottleneck due to poor desktop pool and image

strategy.‐ Network latency not being understood or designed to accommodate loads.‐ Wrong user in the solution based on core qualification criteria for VDI.

Primary resource considerations to size a VDI environment for success:

• Define realistic workloads based on actual typical worker profiles which includes:‐ Application CPU, Memory, Disk & Network IO utilization load generation.‐ Anti-Virus scanning and definition file update impact on CPU, Memory, Disk &

Network IO.‐ Characterize resource requirements for boot and login/off storms.

• Developing a VDI image strategy to minimize impact of consolidated workloads:‐ Segment OS base disk from user profile and applications.‐ Stagger AV scanning and update schedule.‐ Implement AV scans of required files and directories per VDI best practices.

• Implement tools to monitor end user experience and infrastructure loads to mitigate bottlenecking.


So, how did we do?

Primary host design goal was to ensure CPU and Memory utilization balanced at 80%-85%.

Primary storage design goals were to ensure each Tier did not bottleneck I/O and latency < 20 ms.


ISS Validation Results – Full ISS View 4.5 POD

• Dell test data based on real world workloads not generic basic ones..

• Test data drives the Dell ISS configurator engine.

• The DVS Configurator engine combined with the Blueprint Assessment data drives the ISS pod design.

• IOP and density results for RDP and PCoIP sessions were nearly identical.

• View 4.6 was released during testing. The team ran a few tests on 4.6 and found no significant performance variance or increase.

Workload Full Bundl

e Densi

ty

Full Bundle Density (N+1)

Single Server Density

Single Server Density (N+1)

IOPS per desktop

(Tier 1)

IOPS per User

(Tier 2)

Basic 960 880 80 73 17.7 0.57

Standard 720 660 60 55 20.8 0.59

Premium 504 462 42 38.5 27.7 0.63

Thank you!

Stop by the End User Computing Solutions booth to dive deeper on Dell’s methodology to remove the

madness of rolling out a VDI solution!

10

Dell Confidential11

Thank You for coming to see us!

Technology

Dell DDVS Integrated Solution Stack Validation Process