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2026-08-24 23:29:29 UTC
in reply to

Emelia/Emi on Nostr: "anyraid" hasn't really been a thing until relatively recently to my knowledge. ...

"anyraid" hasn't really been a thing until relatively recently to my knowledge. Standard "dumb" stripe RAID is just as picky about using the lowest common denominator of all the drives in the array. And the trick is to replace like-for-like unless the size isn't really manufactured anymore (I have an old 1TB "scratch array" that's currently down a drive, and I literally *cannot* find any new 1TB mechanical drives to replace it, to the point I'm contemplating switching it out for an SSD...)

The only filesystems I know that actually support mixed-size drives are BTRFS (which *still* doesn't have a journal for raid5/6, so you're stuck with an inefficient raid1 if you don't want to risk parity corruption that's quite hard to detect until it bites you on the junk) and bcachefs, and the latter was kicked out of mainline for *multiple* reasons, stability being one of them...