Network-Attached Storage
Unraid is hardware agnostic. Mix and match hard drives of any size to build your server and grow your storage capacity. Swap your hardware at any time, or scale into a more complex server set-up.
Unraid OS
Unraid is an operating system for network-attached storage that lets you use what you have to build the server you want. Mix and match drives, securely store and share data, and manage VMs and Docker applications—all from a powerful, web-based interface.
Go ahead. Add a drive.
Say goodbye to a closet full of mismatched drives—and hello to the most flexible operating system for network-attached storage you’ll ever use.
Unraid OS lets you use what you have to build what you want. Partition system resources to store and protect data, run any application, and create VMs in isolated environments.
Unraid Connect
Your one-stop shop for server management, monitoring, and maintenance. Take Your Unraid Server to the Next Level.
Documentation
Looking for documentation? Find it here.
Our Community
Connect with the friendliest server OS community around.
App Store
If you need an app or wish to contribute one, go to the Community Applications page.
Get Started
What are you waiting for? Try out Unraid for free today!
Hardware Requirements
An Unraid Server runs entirely from RAM, minimizing writes to the Flash device. However, it is also used to store vital system configuration data and must remain installed in your server during operation.
Device Requirements
- 1 Must contain a unique GUID (Globally Unique Identifier)
- 2 Minimum 2GB in size, maximum 32GB in size
If you have any USB drive questions, ask our helpful community or see this video.
Additional Requirements
The minimum hardware requirements to install Unraid OS 6 for data storage usage are:
- A 64-bit capable processor, 1.0 GHz or better
- Minimum 4GB of RAM for basic NAS functionality
- Linux hardware driver support for storage, Ethernet, and USB controllers
- Two hard disk drives to ensure data protection with a parity disk
Additional requirements apply when adding applications or virtual machines.
To run many applications, your system should have at least a quad-core CPU (2.4 GHz or faster) and 4-8GB of RAM. As you load more applications, you’ll need to add additional resources.
To run VMs, you must have hardware-assisted virtualization (HVM) support on your processor/motherboard (Intel VT-x / AMD-V). To assign host-based PCI devices, like graphics and sound, to your VMs, your CPU and motherboard must also support IOMMU (Intel VT-d / AMD-Vi).
Each of the three types of VMs you can create using Unraid OS 6, have slightly different requirements for virtualization support.
| VM Type | HVM | IOMMU |
|---|---|---|
| Virtual Servers | Required | Not Required |
| Virtual Desktops | Required | Not Required |
| Hybrid VMs | Required | Required |
For more information, see our VM documentation.