> My only qualification to enter this discussion is that I once wrote a > floppy disk format program for minix. I recollect, however, that each > sector on the disk is accompanied by a block that contains the sector > address and a CRC.
You'd have to define the layer you're talking about. I presume something like this occurs between a dumb disk and an intelligent controller, or even within the encoding parameters of a disk, but I don't think it does between say a SCSI/FC controller and a disk. So if the drive itself put the head in the wrong sector, maybe it could figure that out. But perhaps the scsi controller had a bug and sent the wrong address to the drive. I don't think there's anything at that layer that would notice (unless the application/file system is encoding intent into the data). Corrections about my assumption with SCSI/FC/ATA appreciated. -- Darren Dunham [EMAIL PROTECTED] Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
