You might not need a NAS – a Raspberry Pi can be the centerpiece of your smart home

Although they’re typically associated with file-sharing and backup tasks, operating systems designed for Network-Attached Storage servers can tackle a variety of other workloads. Home Assistant is one such project that offers a neat way to monitor, manage, and automate smart gadgets and IoT paraphernalia in your living space.

That said, you don’t require a high-end pre-built NAS just to run a handful of containers. So long as you’re using a modern Raspberry Pi model with a decent amount of memory, you can use it as an energy-efficient storage-cum-smart home management server.

And it’s all thanks to the Docker plugin

Unlike TrueNAS Scale and Unraid, which remain restricted to the x86 architecture, OpenMediaVault is a flexible tool that can be configured on Arm devices, including the Raspberry Pi family. If you’re wondering why I called it a tool instead of a distro, it’s because OMV can be deployed in a couple of ways. On anything older than the Raspberry Pi 5, you can grab its image file and flash it onto a storage device like a typical SBC distro. In case you’re on the latest and greatest Raspberry Pi board, you can install OpenMediaVault on top of a CLI distro with a couple of scripts.

Related

Here’s how you can build your own portable NAS with an SBC and USB drives

Thanks to OpenMediaVault, your miniature SBC can double as a solid NAS server

By default, OpenMediaVault may seem more restricted in its features compared to other distro. However, it can walk toe-to-toe with the community-favorite TrueNAS Scale once you factor its enormous list of plugins into the equation. The Docker container, in particular, lets you outfit your Raspberry Pi with a host of cool containers, including the all-powerful Home Assistant.

Having spent hours working with HASS on my 8GB Raspberry Pi 5 model, I can confirm that the SBC can handle quite a few devices on an OMV-based Home Assistant container. While the containerized HASS instance lacks a dedicated app store, you can easily deploy containers for your essential Home Assistant add-ons and hook them up with your smart home management server. Just make sure you’re not running the ZFS plugin on OpenMediaVault. Otherwise, your Zpools could end up hogging the precious memory resources that could be used by Node-RED, ESPHome, and Frigate add-ons.

The right accessories can make all the difference

HATs, anyone?

Switching from the software to the hardware, a makeshift Raspberry Pi NAS can be armed with a host of neat peripherals to enhance its performance in file-sharing and smart home management workloads. If you lean more on the NAS side, you can slot in a SATA HAT to use internal SSDs/HDDs with your Raspberry Pi storage server. For a more portable NAS setup, you can slap a HAT with a GSM slot onto the SBC and connect external drives to its USB ports.

Since the 1 Gigabit Ethernet connection can be a bottleneck for RAID workloads and SSD-only NASberry Pi setups, a 2.5Gbe HAT is a must-have for folks who prefer fast transfer speeds over all else (though you can also check out USB-to-Ethernet adapters if you don’t mind relegating a USB port to an RJ45 expansion card).

Alternatively, the PCIe-to-NVMe adapter is worth checking out when you’re on the Raspberry Pi 5 and want a snappy experience when hosting your container suite. Speaking of PCIe slots, a Raspberry Pi AI Kit is a godsend for Frigate users who require robust AI-powered tracking provisions for their surveillance setup.

Remember to temper your expectations

After all, it’s still an SBC

Finally, it’s time to discuss the drawbacks of a Raspberry Pi-based NAS setup. The low energy consumption of Raspberry Pi boards is more of a double-edged sword. Although these Arm SBCs barely contribute to your energy bills, their performance won’t be the same as that of x86 systems. Software compatibility can also become a hurdle if you plan to pair obscure containers that lack Arm64 images with your Raspberry Pi server.

While we’re on that subject, you’ll only be able to run containers on the NAS server. Sure, OpenMediaVault includes the KVM plugin that lets you host virtual machines on your NAS, but even the fastest Raspberry Pi lacks the firepower to run multiple VMs, especially with your container suite and the underlying OMV installation hogging its small pool of resources. Similarly, you might find the Raspberry Pi HASS performance somewhat lacking if you have hundreds of smart home gadgets in your living space. Throw the affordable prices of a mini-PC into the mix, and x86 systems become more mouth-watering for a NAS/Home Assistant combo.

Nevertheless, the Raspberry Pi boards are solid alternatives to conventional NAS servers if you want an efficient, pint-sized system and aren’t concerned with the slower performance and compatibility issues of these miniature boards. As someone who already owns a dedicated server PC, the Raspberry Pi is my favorite device for building a backup server that can also double as a decent container-hosting hub if (or rather, when) my experiments render my home lab inaccessible.

Related

The LincStation N2 is almost perfect for a budget-friendly SSD NAS

Multiple drive bays, 10GbE support, plenty of RAM, and good ol’ Unraid. What more can you ask for?