[CentOS] External harddisk

Wed Sep 30 09:40:59 UTC 2020
John Pierce <jhn.pierce at gmail.com>

On Tue, Sep 29, 2020, 8:33 AM H <agents at meddatainc.com> wrote:

> I have an old external harddisk, Toshiba 320 Gb, with a USB connector that
> I wanted to check for contents. It did not start up when connected and I
> could not hear the motor spinning. After leaving it in the freezer
> overnight the motor spins but it is not recognized by my computer. I
> disassembled it and could see that the head assembly rests outside the disk
> but when it is powered on, the head first moves to the center of the disk,
> then to the periphery and finally back to the resting position. This
> happens every few seconds and leaving it connected overnight changed
> nothing.

That repeated seeking suggests it's not passing its self test, and is
constantly retrying.   It's probably searching for servo data on the disks,
and not finding it.