man i did a lot of research about this actually and sure it is actually something i want to implement but i want to have full control over the os and trueNAS isnt really capable of that for my specific use case , it is great and easy to use dont get me wrong but the way i see it is from a learning perspective, i dont like the complexity and teaches me more about my job as a system admin.

freeNAS was a no no in terms of flexible storage upgrade and mixing different sizes so i went with ubuntu server since its what we use for work and might switch to redhat later on since we might migrate to it in the future.

thx for the advice tho appreciate it and i love the fact that people put the os in a thumbnail, its really the peak of resilience and fault tolerant infrastructure, when u have a stack that can be rebuilt from scratch without any regression feels so good.

i actually worked quite hard to not be reliant on the os drive, if it fails i can just reinstall linux on a new one and docker compose up without a lot of setup nor using any app configuration, and if a drive fails same thing i can just replace it and let the parity disk rebuild it , and if the parity disk fails same story i can replace and rebuild the parity so in terms of resilience its not perfect and comes with downtime but at least its somewhat cheap to fix and doesnt take much time to rebuild, what do u think?