On 20/08/16 02:43, Chris Dunlop wrote: > Then again, I guess in the end what I'd really like is to be able to > flag a particular disk to md for "write repair", and tell md to repair. > Then md would read data from unflagged disks to write to the flagged > disk (that could work for parity raids as well as mirrors). I had that idea. I'm probably better at understanding and documenting things, hence my interest in the raid wiki, but I'm looking at this exact thing as a project for my first foray into kernel programming. Is that wise? :-) Basically, do a stripe integrity check, and optionally rewrite it? I don't to what extent linux raid actually implements a lot of interesting theoretical abilities, and if I can document it, I can then identify holes and try and fill them. Especially when you're trying to recover a broken array, the more options you have, the better ... Unfortunately the raid wiki admin is MIA at the moment, and I really want to hack that as a learning exercise before I start messing about with kernel code. Cheers, Wol -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
