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Efficient system updates. Simplified data layer. Less Storage.
SnapFS is an embedded file system built for safety-certified systems with snapshotting and subvolumes built-in to replace A/B duplication for system updates and fixed partitioning. Stop reserving storage “just in case,” and simplify the data layer: smaller OTA updates, shared storage between apps, and built-in data integrity and authenticity validation.
Tuxera SnapFS
Product overview
The storage layout with fixed partitions are sized at design phase, years before the software that will fill them is written. Each one has to be sized for its worst case, and A/B updates reserve a second full image on top. Over a 15–20 year life, applications grow at different rates and new use cases arrive while the partitions remain the same. One partition fills while the next sits half empty, and the reserved space stays on the bill of materials for every unit you ship.
SnapFS is built for exactly this. It is one embedded file system that does three things:
It runs on Linux, VxWorks, Integrity or any other OS, on managed flash (eMMC, UFS, SD, NVMe) and on raw NAND/NOR together with Tuxera FlashFX Tera.
Frequently asked Questions
Get answers to the most commonly asked questions, or reach out if your question isn’t listed here.
I want to know more!Three things are hitting your flash at the same time. Software keeps growing on hardware you can’t change. Updates are getting bigger and more frequent across the fleet. And flash got more expensive, so every reserved gigabyte costs you. On top of that, regulations like the EU Cyber Resilience Act make secure updates mandatory, not optional. SnapFS is built to take the storage over-provisioning out of all three.
A/B keeps two full images and switches between them. It works, but it reserves a second full image on every device for the life of the product, and the partitions are still a fixed size. SnapFS keeps only the changed blocks as snapshots. You still get a rollback point — without paying for a full second copy – and storage can flex at runtime.
SnapFS is in active development. A technology preview and early access come before general availability. Leave your details below for updates, or to talk about a pilot on your platform.
Leave your details to get early updates as we build SnapFS — or tell us about your platform if you want to talk about a pilot.
Technical specifications
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Have a question or need guidance? Whether you’re searching for resources or want to connect with an expert, we’ve got you covered. Use the search bar on the right to find what you need.
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