I have a load-bearing raspberry pi on my network - it runs a DNS server, zigbee2mqtt, unifi controller, and a restic rest server. This raspberry pi, as is tradition, boots from a microSD card. As we all know, microSD cards suck a little bit and die pretty often; I’ve personally had this happen not all that long ago.
I’d like to keep a reasonably up-to-date hot spare ready, so when it does give up the ghost I can just swap them out and move on with my life. I can think of a few ways to accomplish this, but I’m not really sure what’s the best:
I’m thinking out loud a little bit here, but do y’all have any thoughts? I think I’m leaning towards ZFS or BTRFS.
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I couldn’t count the number of failed sd cards I’ve seen across all my fingers and toes.
I’ve seen like 4 ssds in my entire life fail. Plus you could just do mdraid 1 / btrfs across 2 of them if you want
Any failures of SanDisk Extreme Pro / Samsung Evo Plus?
I buy the redundancy argument. I’d still use ZFS for that if possible though. 😂 All my machines use mdraid 1 for their system drives but now that I know enough about ZFS, I’d likely use it on root next time around.
Yes. I’ve always splurged on nice cards for my personal stuff. I think it’s more about the write behavior of Linux than anything else, since I’ve never had a card die in my camera.
I refuse to use a pi with SD at this point. Saving $50 isn’t worth my time to reinstall things.
You’re making me nervous.
But then again, all my Pis are OpenWrt now which barely writes, so I’m probably fine. 😅