Good morning.  There is no set number of VMs that can be backed up at one time.  The best answer is “as many as resources will allow”.  Can you please verify that you the prerequisites for protecting Nutanix with the Virtual Server agent are met:

https://documentation.commvault.com/11.24/expert/3338_system_requirements_for_virtual_server_agent_with_nutanix_ahv.html

Hi @Orazan ,

VSAs are configured as per Commvault documentation.
 

The question is, what is the better approach for VSA servers.
 

Option 1. Better to add another smaller VSA?
Option 2. Is it better to add CPU and RAM to the existing VSA and if it has 12CPU then install the new VSA machine?
 

It's all about the performance of data protection tasks. As I wrote at the beginning, if you use 3 VSA instead of 2, the backup job are completed much faster, so I think option 1 will be better, right?

Rgrds,
Kamil

Multiple smaller VSA is better as Nutanix resources can be load balancer in a more efficient manner over the available Nutanix nodes, which will result in improved performance

Hi, 

Thank you for the information @Jos Meijer 

Additionally, I found out from a colleague working with Nutanix that this is due to their clustering and Data Locality.

Everything has been cleared up. Case resolved.

Thanks&Regards,
Kamil

Your welcome 

Good to hear everything has been cleared up