Comment 15 for bug 320638

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ceg (ceg) wrote : Re: hot-add/remove in mixed (HDD/USB/SD-card/...) RAIDs -> data corruption (bio too big device md0 (248 > 200))

This is a very severe data corrupting bug.

Thus, even if the the md devs can not fix the "bio" abstraction or whatever would be necessary to support mixed interface setups, the md module should definitely have a safeguard and make sure to return a failure on hot add/remove under these circumstances, instead of letting this bug eat it's user's data.