Hello Mostafa,
I hope you're doing well.
Thank you for replying to us. As per my understanding, you are trying to mount an NFS file share in a RHEL machine.
Please, confirm if you have created a NFS file share. It is only available for premium storage accounts:
Also, you need to specify the protocol while creating the file share:
For reference:
https://learn.microsoft.com/en-us/azure/storage/files/storage-files-how-to-mount-nfs-shares
https://learn.microsoft.com/en-us/azure/storage/files/storage-files-quick-create-use-linux
Alternatively, you may mount a SMB File Share in Linux as well: https://learn.microsoft.com/en-us/azure/storage/files/storage-how-to-use-files-linux?tabs=RHEL%2Csmb311.
Please, let us know if you have further questions.
Best regards,
Giovanna