Hello @yousra muhammed ahmed ,
Thank you for your post! I was doing some more research into Nutanix Cloud and per my consultation with the Azure Backup Team, it appears to be a virtualization server and wanted to confirm if you are having VM's running on-prem with Nutanix?
If so, your options would be to either use MARS agent to backup files/folders, backup SQL directly to Azure by using this guide, or you can create a MABS/DPM server and push an agent to each Windows Server that you wish to backup.
Please let me know if you have any further questions or concerns and we'll be happy to assist you further if needed.
----------
Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.
Thanks!
Carlos V.