The VMware View Bootcamp ends today with a talk about the View Reference Architecture. Mac Binesh, a Sr. Technical Marketing Manager outlines some of the typical costs associated with and benefits of adopting a virtual desktop infrastructure. I found the content a fitting end to the View Bootcamp series. When I look back at the previous discussions I realize that many of the regular posters have already come to realize the ways that a product such as View can benefit their organization, and not just with regard to CAPEX/OPEX per physical desktop. My notes from the Day 9 video. What is a Stateless Desktop?
- Referred to as a “floating” desktop in View 4.5/4.6
- Generic user desktop that is allocated to a user at login
- User changed to the desktop are discarded at logoff
- No User installed application
- The VM returns to the desktop pool upon log off
- Lower cost per VM can be realized with tiered storage
- Starting with View 4.5 the “floating” VM can be placed on solid state disk on a blade server; previously the VM could only reside on the SAN
Reference Architecture Goals and Benefits
- The reference architecture represents a validated VDI solution that was built and tested by VMware
- The reference architecture represents a realistic desktop workload, a task/knowledge worker
- Lower the CAPEX (capital expense) costs as measured on a per desktop basis
- To the User:
- Fast login times
- Fast access to applications
- Easy to reboot the VM
- To the IT Department:
- Improved SLA’s
- Easier to manage than physical desktops
- No “storms” (boot, login)
- No SAN required
- Scales easily
- To the Business:
- Reduced CAPEX and OPEX compared to physical desktops
- Enhanced user productivity (more stable and consistent desktop experience)
- Enhanced IT productivity (less to manage)
- Plus all the other benefits associated with leveraging VDI
- Since 2008 the datacenter hardware required by VMware View has decreased in cost by approximately 75%.
- CAPEX Datacenter (Hardware) Cost Per Stateless Virtual Desktop (figures from VMware): $242
- Qty 12: 8 core server w/96GB of ram: $212,796
- 12 desktops per server core
- Windows 7 23-bit with 1Gb of ram.
- Datacenter switch: $11,842
- SAN (20TB): $69,450
- Qty 32: 160GB SSD drives for servers: $15,968
- Total: $309,756 ($242 per desktop)
Key Use Cases
- Remote Office/Branch Office OR Business Process Outsourcing
- Reduced costs since desktops and users are centrally managed.
- Sensitive data stays in the data center.
- Streamlines application and desktop deployment.
- Labs, Kiosks, and Training Centers
- Supports distance learning environments.
- Rapidly provision desktops.
- Enhanced security with centralized control and management.
- Reduced costs and increased control.
View 4.5 Scalability Testing and Results
- For VMware testing the following architecture was used:
- Linked clone replica base image resided on local SSD storage
- Parent base image, user data, and the VM’s .vswp file resided on the SAN (shared storage)
- .vswp files and infrastructure VM’s (parent base image and View servers themselves) resided on NFS
- Standard file shares were used for Windows user data redirections
- Non persistent automated pool that refreshes immediately
- Test Strategy and Success Criteria
- Establish a baseline for desktops per server
- Gradually increase the number of desktops until the resources of the server are maxed out
- Reduce the number of desktops until utilization is at an acceptable level (VMware used ~70% CPU utilization as their figure)
- Start with two servers, then scale out in two server increments
- Validate application performance with each server scale out
- Monitor SSD utilization
- Test Results
- VMware was able to scale to 96 desktops on an 8 core server (12 VM’s to server core)
- Varied reboots of VM’s were sustained without consuming 100% of the system resources
- 10Gbit ethernet combined with the use of local storage made it obvious that the networking environment could handle a fully scaled server load
- The traffic observed is similar to that of a typical file server
- VMware View 4.5/4.6 with tiered storage will drastically lower CAPEX, and simplifies cost modeling of desktop virtualization
- Testking has proven that VMware View 4.5/4.6 provides linear scalability across both compute and storage regardless of scale
References from the presentation plus some I have added:
- VMware View Product Page
- VMware View Download Page
- VMware View ROI and TCO Calculator
- Workload Considerations for Virtual Desktop Reference Architectures
- Demystifying Client Virtualization
- EMA White Paper — VMware View 4.5 and Stateless Virtual Desktops on Local Solid-State Storage
- The VMware Reference Architecture for Stateless Virtual Desktops on Local Solid-State Storage with VMwareView 4.5
- This is the most recent version of this document.
- VMware View Sizing Calculator by Andre Leibovici
- How to configure Login VSI to test either VMware View or XenDesktop
- How and why to replace the default VMware View Composer SSL certificate – Part 2
- How and why to replace the default VMware View Composer SSL certificate–Part 1
- Tuning Windows 8 for EUC deployments
- VMware View 5.1 Storage Accelerator in Action
PicturesEMC World 2011
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