Question "GMR head amplitude" red on new toshiba HDD

[JSTQ]

Yesterday I got new toshiba hdwd130 and its smart is:

Should I be worried about this gmr? What I got from googling that its means that its an indicator of drive aging and/or potential electromechanical problems that will lead to bad sectors.
The second value (that is 3 on a screenshot) sometimes changes to 2 or 1.

The smart of the drive that I'm replacing (it gives I/O mistakes quite often)

2nd value of GMR is always zero on it.

 

[fzabkar]

I can't answer your question, but it would appear that this attribute bottoms out at a normalised value of 1, ie it never hits the threshold value of 0. This in turn would suggest that this attribute is not a critical one, and will never report a SMART failure.

Searching with Google turns up vague descriptions regarding "trembling", so I have no idea what this attribute is telling us. It is obviously referring to some aspect of the Giant MagnetoResistive read head. The amplitude probably relates to the strength of the read signal. However, the Read Error Rate attribute is clean.

 

[JSTQ]

So I guess even if I would try to return it to the shop to swap on another one, they would refuse it saying that its working fine?

 

[fzabkar]

I don't know. Technically it isn't reporting a failure, and I suspect that all your read/write tests will pass.

BTW, the drive is a rebadged HGST model.

 

[myt00]

hey. any new info about that? i have same ..thing
upd: found some other screens with same values, seem it's common