The Three UC Amigos

Three Microsoft UC technology specialists covering U.S. Education

OCS 2007 R2 Virtualization announcement

OCS 2007 R2 Virtualization announcement

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Today, we announce OCS 2007 R2 virtualization support for certain OCS 2007 R2 roles. This includes our own Hyper-V technology as well as other SVVP certified virtualization technologies. I know a lot of schools have been waiting for this since they want to reduce HW footprints, etc.


What OCS R2 functionality is supported on a virtual server?

· Presence

· IM (including remote access, federation, and Public IM Connectivity)

· Group Chat


What R2 roles are supported and not supported as a virtual server/guest?

Here is a matrix which lays it out nicely:



Why are some roles not supported as a virtual guest?

Virtualization of the other OCS voice, video, LiveMeeting, desktop sharing roles are not supported because of possible quality issues with real-time media.

What are the virtualization requirements?

  • Virtual machine guest must run 64-bit Windows Server 2008
  • OCS 2007 R2 (OCS RTM is not supported)
  • Use the OCS R2 Sizing tool to understand virtual guest virtual RAM, proc, requirements.

Sample Hyper-V OCS R2 configuration showing FE, Group Chat and Edge as virtual guests:


The sample Hyper-V architecture above was stress tested to support 40,000 IM users and 10,000 Group Chat users.


For more on this, download the OCS R2 Hyper-V virtualization whitepaper here.


  • Today, we announce OCS 2007 R2 virtualization support for certain OCS 2007 R2 roles. This includes our

  • Will this support be extended to the OCS 2007 R1?

  • I haven't seen this would be extended to R1.

  • The second line is incorrect, Standard will run in a virtualized environment

  • Ed,

    Can you share documentation around that? I grabbed this matrix from MS documentation.

  • this was announced serveral months ago...


  • Rocky and Ed,

    I checked on this with the OCS product team and they tell me Standard Edition is not supported in a virtual environment since they did not have the resources to test SE and focused on Enterprise Edition support.

    They pointed me to the latest OCS virtualization documentation which shows SE is still not supported:

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