In reference to this document: Configure a content management (CM) server

Currently we have a 2 server CM setup, and both of them are configured as processing/reporting server roles. This is Sitecore 8.2. I don't know if this is even a supported setup for 8, but it's just to provide background.

We are currently planning out infrastructure for Sitecore 9 and took a look at what this should look like. Scaling out horisontally doesn't seem to be a problem, however at the end of the document it states:

If you have multiple CM servers, you must set up a dedicated Reporting Service instance.

This sounds, to me, like

  • It cannot be on either of the CM servers
  • There can be only 1 dedicated Reporting Service instance

Is this correct? Or will it be possible to assign the Reporting Service instance to one (or both) of the CM instances?

1 Answer 1


Yes, my understanding is that you cannot horizontally scale the reporting service. If you plan on running multiple CMs, you need a single dedicated Reporting Service.

There is a sample architecture diagram of the multiple CM scenario available in the scaling guide. It also shows a single reporting instance.

Additionally, when discussing 'multiple' instances, Reporting is left out of the scaling guide.

  • Cheers :-) Say we put Reporting on one of the CMs then - would the reports be accessible from the 2nd? Not directly part of the question, but useful additional information if you happen to know
    – Mark Cassidy
    Commented May 30, 2018 at 12:35

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