Hello world.

Doing a side by side migration from OCS 2007 to OCS 2007 R2 (due to our goofy SA agreement cannot upgrade to 2010 or Lync yet) and I am following the step by step guide here:

https://technet.microsoft.com/en-us/library/dd572505(office.13).aspx

My question is this...can I have two disparate SRV records referencing TLS...one pointed to legacy and then a new one pointed to the new server?  What will happen with my clients?

This is an internal only deployment...no edge servers...no director...etc.

I have the domain prepped and when I launch setupse.exe I get all the way to the end and it rolls back because it cannot create the pool as it does not exist and there is no SRV TLS record to reference the pool.

We use OCS 2007 extensively throughout the org day and evening so I need to be able to get the new SRV records and pool inline without impacting production.

Can anyone shed some light on how I move forward?  Been over the documentation and Google/Bing quite a bit and have yet to find a sufficient answer.

Thank you in advance MS community!

Hi crashIO,

No, the DNS SRV record can point only to a single pool, and in a mixed environment the supported configuration is to use Office Communications Server 2007, Director, with both Office Communications Server 2007 and Office Communications Server 2007 R2 pools. This means that during migration, you should configure DNS records to point to the Office Communications Server 2007 Director or FE.

Before installing the OCS 2007 R2 pool, did you move your OCS Global Settings from the System Container to the Configuration Container in Active Directory.

With Office Communications Server 2007 R2, the default container for Office Communications Server global settings is the Configuration container. In previous versions, the default container was System container of the root domain.

If you did not perform this step, please follow the article below to do this.

https://technet.microsoft.com/en-us/library/dd572392%28v=office.13%29.aspx

In addition, in order to co-existence with OCS 2007 R2, please ensure your OCS 2007 Servers are up-to-date.

Best regards,

Eric

Thank you for the response!

I did move the global settings from the System Container to the Configuration Container. 

Right now I am having trouble with how to configure OCS2007R2 to use the Front End of OCS2007.

Hi crashIO,

You do not need to modify the DNS record, the OCS 2007 pool will redirect the client sign-in requests to the correct pool because every pool provides the same functionality as a Director.

Best regards,

Eric