On 03/12/18 17:49, Niklas Hambüchen wrote: > On 2018-12-03 18:35, Phil Turmel wrote: >> Your drives appear to be fine. I suspect you have a problem with other >> hardware in this box. > > When I repeat `smartctl -t short` on these disks, it fails at exactly the same sector: > > Disk 1: > Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error > # 1 Short offline Completed: read failure 40% 16424 7501728 > # 2 Short offline Completed: read failure 40% 16398 7501728 > > Disk 2: > Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error > # 1 Short offline Completed: read failure 50% 16424 1758544 > # 2 Short offline Completed: read failure 50% 16398 1758544 > > Doesn't this suggest that this is not unfortunate behaviour of a power supply, but permanent damage to the disks (even if originally caused by a power or power supply problem)? > I don't think so. It's permanent damage to the *data*, yes. But as soon as that sector is rewritten, I suspect the problem will go away. If smartctl can't read the data, it can't rewrite it. And if it's damaged such that it is permanently unreadable, that error will remain until that sector is rewritten by outside influences. Once that's done, the firmware will relocate the sector if necessary, and the drive will be fine again. Cheers, Wol
