On Thu, Nov 04, 2010 at 02:34:30PM -0400, Przemek Klosowski wrote: > > 'Self-healing' bad sector errors... but maybe I'm just paranoid. Do SATA > > drives do bad sector remapping, and do they do it well? Who knows... > > Certainly they do. I recommend checking the SMART firmware status by > running smartctl -a /dev/sdd or skdump /dev/sdd > On more recent kernels they can interrogate most disks across the USB > bus as well as the standard ATA-attached disks. > Look for Reallocated_Sector_Ct and especially Current_Pending_Sector : > the former shows hard errors that were recovered by replacing the bad > sector by a spare; the latter shows presently occurring errors that > could not yet be repaired.
Absolutely. And in my particular case, there were not even any errors showing from smartd after the drive was brought back into it's normal temperature operating range and a full badblock check was run on the drive before reusing it. It just makes sense to me that if a device goes a bit outside its thermal range it might show temporary bad results... now if one were to keep it running well over temp, you would eventually see permanent damage. At least that's my story and I'm sticking to it. :-^ I guess it comes from having actually worked with discrete transistors, or maybe due to the mental trauma from the time I picked up a soldering iron by the wrong end one 5am in the morning... _______________________________________________ Dirvish mailing list [email protected] http://www.dirvish.org/mailman/listinfo/dirvish
