Hi, my problem is that I have a bunch of crappy disks which seem unable to reliably remap bad areas after a read error. This obviously makes the read error rewrite feature of our beloved RAID5/6 code somewhat less than useful. What I would like to do is to re-map these sectors in userspace -- either by browbeating the disk into it, or by using the Device Mapper. So I'd need a way to tell a userspace daemon "this device+block is unreadable", and wait until said daemon tells the RAID core to go ahead. I can do the userspace side easily, but my time to dig through the RAID code and implement that sort of channel in a maintainable way is somewhat limited. (Plus, I need that code sooner rather than later.) Would somebody be able to help out? There may be some money in it ... -- Matthias Urlichs -- 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
