Multiple instance of CRM Async service running in SQL Server Windows Fail Over Clustering

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How should we install and configure CRM Async service in a Clustered SQL Instance (Windows Fail Over Clustering) so that only one instance of Async services should run on an Active/Passive node. While I move the node, I want to automatically run the async services installed in Sql Node 2. ie. When SQL Node 1 is active , all CRM services installed should be running and SQL Node 2 should have all CRM Services with status not running mode. When I switch to Node 2, all CRM Async services should automatically run in Node2. Can anybody please help. Thanks in advance

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Suresh Kumar VC 10 on at

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RE: Multiple instance of CRM Async service running in SQL Server Windows Fail Over Clustering

Hi ,

I revisited my issue again and understood the following.

Technical Issue: My problem in having CRM Async services running on both Active and Passive instance arise because of Server Memory Issues / Performance problem and the implemented CRM is OnPremise instance.

Results: It is expected to have two seperate servers running and use its own resources without having any other applications or dependency joined in a cluster. The cluster will have both services running parallel but one will always be Active which is an expected behaviour.

Please share your responses.

Thank You,

Suresh Kumar VC
Community Member on at

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RE: Multiple instance of CRM Async service running in SQL Server Windows Fail Over Clustering

Dear Shubh,

Thanks for your reply. I have Async Service running in SQL Node 1 and SQL Node2. Instead I would like to have it running only in one node and while failover within Cluster, I want the async service should start to run automatically. Hence, may I know your advise please.

My App Server has only the following services running :

Many Thanks,

VC Suresh Kumar
Shubh Jha 100 on at

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RE: Multiple instance of CRM Async service running in SQL Server Windows Fail Over Clustering

Running Async Service on multiple system will not impact (In fact it will improve processing of request).

However if you install Async Service on multiple server and "STOP" service on few system will also work. Once you again re-start, it will pick job from queue and start processing.

Please note Async Service can be installed on CRM App Server, SQL Server or any other server (which fulfill prereq)