[StreamBright]

So you discovered the well known problem in "IoT" that SD cards should never be used for filesystems that are online 100% of the time?

I think the parent views on storage is still valid. Do not boot from the RAID volume where you store many terabytes.

I usually have a small mirror SSD for the OS (like 128G or max 256G). Those drives are super cheap, easy to replace.

For the /data I usually use ZFS or mdadm + xfs. Depending on the use case (for example do you want to add more capacity later? ) you can decide.

Using SDcards for server filesystem is negligent at the very least.

[krageon]

flash dying after a few years is not exactly weird or unexpected, regardless of the form factor