On Thu, Apr 05, 2007 at 09:15:38AM +0100, Gordon Henderson wrote: > >>>[*] probably an entirely defective batch of 14 Samsung Spinpoint > >>>500G disks > >> > >>Lets hope not... Keep checking those SMART values... > > > >Failed disk #2 still reports a SMART status of "PASSED".. > > Hmmm.. I'd be tempted to double check your hardware + kernel versions > then I think in this case it's more of a disagreement between me and the disk about whether certain levels and patterns of bad sectors are acceptable or not. dd'ing the disk to /dev/null keeps reporting new UncorrectableError sectors, which overwriting with zeroes then supposedly fixes (judging by the increasing Reallocated_Sector_Ct), but a subsequent read from the very same sectors reports the very same UncorrectableError errors again, plus new errors from other sectors. The SMART short offline tests also report "Completed: read failure". Meanwhile, the disk still feels that that its SMART status is PASSED. (FYI, these are Samsung Spinpoint T166S HD501LJ disks with serial numbers in the range S0VVJ1KP3xxxxx) - 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
