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Yes to the last question. And I compared them when they were both empty. So it means a faulty drive got repaired and they sent me that crap? Damn... as if it was my fault they sent a broken one in the first place. I'm even sadder because the new one wasn't even defective, it just had a minor "problem" that I read is very common among some drives from WD. I should've spent the 80$ on charity not on this crap.If you are doing a fair test. I mean comparing benchmarks on drives that are equally full. It could be that the RMA has factory remapped sectors in the area that is tested. Remember that when you get a drive back from RMA it was most likely someone else's bad drive that was repaired. Or are you talking about hdtune type benchmarking?
So it means a faulty drive got repaired and they sent me that crap? Damn... as if it was my fault they sent a broken one in the first place.
I'll keep that in mind next time I do this, I never RMA'd a HDD before, usually they lasted until after their warranty, so I have no experience with this.There is no guaranty that the drive you get back from an RMA will be better (or even as good) than the one you send them. This is why I recommend only sending in a drive when you verified that it is bad (a few reallocated sectors is not necissarily bad).
on the HDD itself? I'll take a look...It would have rectified printed on the label if it was repaired.
I don't see anything like that on the label. I looked for "refurbished" "rectified" "recertified". Does this mean it's new? I did send it back the day I got it, maybe they took that into account and sent a new one.It would have rectified printed on the label if it was repaired.
I was wondering why it's slower than another drive that was the same model and had the same firmware, what's wrong with this question? Sorry if I made you angry.I don't see the problem here. All hard drives are slow. What did you expect?
It is not unusual to see a ~5% variation in sequential performance between drives of the same make/model(/fw). (Firmware version has negligible effect on seq performance.)I RMA'd a drive and got one that's on average about 8-10MB/s slower. Is this normal? I'm planning to make it a OS drive.
Thank you for your very informative answer! That's what I wanted to know! I don't care about the difference but I was curious about that difference. I also saw my same HDD model get 200MB/s based on other people's benchmarks, so I was just wondering why these differences exist considering how precisely built a HDD is.It is not unusual to see a ~5% variation in sequential performance between drives of the same make/model(/fw). (Firmware version has negligible effect on seq performance.)
The seq performance for a particular sample of a drive is totally determined during the factory low-level formatting of that drive. Variations [in seq performance] (between samples) is introduced (by that formatting procedure) based on (measured) variations (in quality) of the platter surfaces, [and, to a lesser extent, the heads].
--UhClem