It is on Neil's wish list (or to do list)! Mine too! >From Neil Brown: http://marc.theaimsgroup.com/?l=linux-raid&m=110055742813074&w=2 Guy -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Michael Tokarev Sent: Sunday, January 09, 2005 1:00 PM To: linux-raid@xxxxxxxxxxxxxxx Subject: Re: Spares and partitioning huge disks Peter T. Breuer wrote: > Michael Tokarev <mjt@xxxxxxxxxx> wrote: > >>I think all modern drives support bad block remapping on both read and write. >>But think about it: if there's a read error, it means the drive CAN NOT read >>the "right" data for some reason (for some definition of "right" anyway) -- >>ie, the drive "knows" there's some problem with the data and it can't > > I really don't want RAID to fault the disk offline in this case. I want > RAID to read from the other disk(s) instead, and rewrite the data on the > disk that gave the fail notice on that sector, and if that gives no error, > then just carry on and be happy ... There where some patches posted to this list some time ago that tries to do just that (or a discussion.. i don't remember). Yes, md code currently doesn't do such things, and fails a drive after the first error -- it's the simplest way to go ;) /mjt - 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 - 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