Cold Storage of Server in Azure

I have an on premise physical server with 3TB of disk that I need to migrate to Azure. The server is only required every 3-4 months to restore data. Therefore we would rather reduce the cost and not have this running and on managed disks. One option I am looking into is if it is possible to only have the C and D drives (200GB total) running on a VM and have the other drives (2.8TB) stored in blob storage and reattached to the VM when needed.

Anyone done something similar?