I was just adding RDM shared disks to configure a Microsoft Failover Clustering in one of my working projects, and it was failing with an error message. This was a quick fix but I thought to publish as an article to make your life more easier, if you have a similar situation.
I wanted to add a new SCSI Controller and wanted to make it as “Physical” and type as “VMware Paravirtual ” which is a primary configuration requirement for this clustering configuration.

It was failing with the below error message and I was not able to save the configuration after changing the controller type. There was no any configuration errors with the Virtual Machines and it was configured with the same standard as other working cluster Virtual Machines.
Device ‘SCSI controller 1’ is a SCSI controller engaged in bus-sharing.

After checking sometime with the Virtual Machines I realized that it failed due to the previous snapshot taken to some changes in the Virtual Machines. After deleting the snapshot, the required configuration was successful.

I hope this will help someone to overcome with a similar situation.
Anand
September 10, 2019Yes , it helped me .. Thanks
Aruna Lakmal
September 10, 2019Hi Anand
Thanks for the comment!
Ceku
October 1, 2019Thanks bro!
test
October 1, 2019Thanks, worked
Wim
March 22, 2020Thank you very much for taking the effort of putting this out there
Aruna Lakmal
March 26, 2020Thanks for the comment!
Anudeep
July 16, 2020Thanks a lot.. You saved my day 🙂
Jonathan FOnseca
May 20, 2021Thanks Man!
Help me alot.
Aruna Lakmal
July 12, 2021Hey, Glad that I could help !
Mohamed shendy
July 8, 2021thank for you article its very useful
Aruna Lakmal
July 12, 2021Thank you for the reply!