On Tue, 29 Oct 2019 12:05:02 +0000 Jorge Bastos <jorge.mrbastos@xxxxxxxxx> wrote: > Same, especially with WD drives, they appear to be false positives, if > you can take the disk offline a full disk write will usually get rid > of them. Oh and talking of "especially WD" and especially Green, such transient errors are a a sure symptom of rust developing on PCB contact pads: https://www.youtube.com/watch?v=tDTt_yjYYQ8 E.g. Hitachi doesn't have this issue (they have drops of solder on each contact pad); not much experience with Seagate; and WD themselves later improved the design of this connection (redesigned type seen at least on a 6TB WD Red). -- With respect, Roman