This is critical for data safety. Go to Add Hardware > SCSI Controller > Hard Drive .
The biggest and most frequent issue is storage. DSM is designed to communicate with disks via SATA ports. Hyper-V's default virtual disks ( .vhdx ) are presented to the guest OS as SCSI or IDE devices, which can be invisible to the DSM kernel. This is the number one reason for the dreaded "No disk found" error.
Running Xpenology DSM 7 on Hyper-V: The Ultimate Self-Hosted NAS Guide
Given the difficulty, many users eventually choose to step back from the Hyper-V path. If you are a Windows user, VMware Workstation Player (free for non-commercial use) has proven to be a much more compatible and reliable platform for Xpenology. For a dedicated, server-grade hypervisor, Proxmox VE is another excellent, free, and open-source choice that is well-supported by the Xpenology community. xpenology dsm 7 hyperv
Create a new virtual disk ( VHDX ) to act as your primary DSM storage volume (e.g., 100 GB or larger).
ARPL will download the necessary drivers and build the loader. Boot Loader: Select "Boot loader".
How many do you plan to use for your NAS storage? This is critical for data safety
Navigate to the tab and assign at least 2 Virtual Processors .
Open a new browser tab and navigate to http://synology.com or directly enter your VM's IP address on port 5000: http://[VM-IP]:5000 . The Synology Welcome Screen should appear. Click .
Hyper-V features low overhead, excellent multi-threading processing, and highly efficient dynamic memory management. DSM is designed to communicate with disks via SATA ports
For optimal storage speeds under Hyper-V, use fixed-size VHDX files rather than dynamically expanding ones. Fixed disks allocate all the physical space upfront, eliminating disk fragmentation and performance overhead on the Windows host machine during heavy write operations. Conclusion
Select a model that matches your virtualization setup. The DS920+ or DS3622xs+ are highly recommended for DSM 7.
Before starting, ensure your host system meets these baseline specifications: Hardware Requirements