Severe noise when running harddrive diagnostic tool - WD Drive

[MegaScientifical]

I downloaded Data Lifeguard Diagnostic for Windows and ran it on my WD Black Series WD4003FZEX harddrive. I selected the Quick Test. When the test started, the drive revved heavily, with a loud, unsettling noise for probably 10-15 seconds. After that, it continued to make a low and unusual sound periodically. When the test finished, the program said it had passed. However, I doubt a harddrive should EVER had as intense as it did.

I need to know if that was... normal... If the diagnosis tool immediately revving the drive like that is normal. I mean, right before the test started, it stated to close all programs using  the drive to avoid data loss. You'd think it'd warn about potential, desk-vibrating spin-up... According to WD Data Lifeguard Diagnostics User Manual, it isn't for diagnosing mechanical problems, so just because it somehow passed the SMART test doesn't mean it is fine... And considering no harddrive should sound like a grinding-stone dreidel, I... I'm afraid.

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[dkamm65]

Does that sound match any of these?

http://datacent.com/hard_drive_sounds.php

[MegaScientifical]

I believe it sounded like... extremely high revving. Most of those pertain to issues which invoke slowdown/stop... Uh... So... I'm not sure... *keeps checking them*

Edit: I don't think it was like those. Honestly, my memory easily blurs when it comes to things like this. However, if it sounded like any of these, I'd definitely have emergency shut-down. Trying to recall on my memory, I do believe it was like... revving up FAR higher than I thought was safe. I suppose I expected it to start making any of these sounds, but it didn't. However, the spin up was FAR HEAVIER than any of the drives work. It was highly audible, and sounded dangerous.

And yes, that's odd. A problem where the disc speeds up... I'm hoping maybe the diagnostic did this on purpose, but I can't tell...

[MegaScientifical]

Update: Talked to some people. First person, a head of a computer lab at my college, gave me some reasons. They don't usually work with diagnostic tools, but we discussed what it might have been. I then went to the repair shop I had been to two days ago. He said it was normal to run it that fast - it was a physical test. Lastly, I talked to Ethan (a few of you might know him), and he said Quick Test will run the disc fast, while the normal test will trawl the disc slowly. AKA I scared myself.

[Oasis]

lol not a big deal. Hard drives are the scariest thing to think are breaking in a computer. Anything else goes and you can replace it.