All, I keep forgetting to ask, but the subject of this thread makes me wonder if you guys are familiar with the hdparm features of "--make-bad-sector", "--read-sector", and "--write-sector". I don't know if any of those can be used to force a sector to be remapped, but I could see a user space process like: identify corrupt sector hdparm --make-bad-sector (to get it as corrupt as linux knows how). calculate correct value write new value to sector the normal way (hopefully the drive will remap the bad sector) hdparm --read-sector will do a low level read of the sector, including the sector header and checksum as I understand it. I'm not sure all that gets back to userspace. hdparm --write-sector will force a sector to be rewritten. I don't believe it is meant to ever cause a sector remap. Of course you never know what a disk drive is going to do for any given command. Mark Lord is of course the expert on all things hdparm. Greg -- 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
