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I need new hard drives - Page 2

post #11 of 17
1TB HHDs are incredibly *slow*. X_X Why does anyone recommend buying them these days?
post #12 of 17
@Drake87

That may well be the case. smile.gif

@DVLux

"Slow" is an accusation you can level at all hard drives, compared to SSDs. The capacity of the hard drive is actually irrelevant, it's actually the combination of rotational speed and platter density which affects the transfer rates of a given hard drive, regardless of overall capacity. A 1TB drive can easily have the transfer rates of a 6TB drive, depending on how it's engineered.
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post #13 of 17
Quote:
Originally Posted by parityboy View Post

@Drake87

That may well be the case. smile.gif

@DVLux

"Slow" is an accusation you can level at all hard drives, compared to SSDs. The capacity of the hard drive is actually irrelevant, it's actually the combination of rotational speed and platter density which affects the transfer rates of a given hard drive, regardless of overall capacity. A 1TB drive can easily have the transfer rates of a 6TB drive, depending on how it's engineered.

And then you ask yourself why you have six 1TB drives when you could have one 6TB drive. redface.gif Also, HDD "speed" is more than just rotation speed and "density". Larger drives are faster because they have more heads, and can write/read in parallel. This isn't something you can engineer with a one platter drive.
Edited by DVLux - 10/9/16 at 11:57am
post #14 of 17
@DVLux

Nobody said go and buy 6 1TB drives, although stuffing everything on a single 6TB drive is suicide at the best of times, unless you have an additional 6TB of storage space for backups.

As for the point re: more heads, you may well be right but why put the word density in quotes? Areal density is a real thing and for drives of a given capacity and rotational speed, the one(s) with the greater areal density will boast faster transfer rates. Many times on this forum in the past (before SSDs became popular) we would play guessing games on how a drive was manufactured simply by looking at the rate of decay in sequential transfer rates in HD tune - it was pretty easy to tell the 500GB or 1TB drive that was using the higher density platters found in the larger capacity family members.

Case in point, a few years ago someone on this forum got a replacement 640GB Black (I think) from Western Digital. Benching it showed that its sequential transfer rates and rate of decay were identical to that of a new revision of 1TB Caviar Black; very obviously the 640GB Caviar Black was using identical platters to the 1TB Caviar Black, and likely they were "short stroked" in the firmware in order to offer the reduced capacity.

There are many different ways to skin a cat. smile.gif
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post #15 of 17
Are 10k rpm drives not made for the consumer market anymore?
post #16 of 17
@Drake87

It wouldn't surprise me if they're tail-ending now, SSDs are doing a far better job at not much higher a price. 10K consumer hard drives aren't worth it.
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post #17 of 17
Ah I forgot about price bias. Down 'ere everything's still expensive tongue.gif

I don't know about the price/perf difference between a black and green and whether it's worth saving, but OP can consider a 250-500GB cache SSD for his games and recordings and store everything else on greens/blues.

At the end of the day if you need a TB worth of storage then you can't really go wrong with any model HDD. It'll tide you till high storage SSD's come out.
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