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3TB and 2TB Hard Drives running faster after doing quick format (Originally both were Full Formatted)

post #1 of 8
Thread Starter 
Hiya
Ive got a pair of Hitachi/HGST 7200rpm Deskstar/Ultrastar hard drives. One is a 2TB and the other is a 3TB. Both have 64mb of cache and both are Sata III 6.0gigaflops.
Now I originally full formatted both drives with default settings for both through Windows Disk Managment. Both Drives scored around 117mb-Write and 117mb-Read. After doing a quick format with the same default settings through Disk Management, both are running faster.
The 2tb is Now scoring 150mb-Read 150mb-Write, and the 3tb is now scoring 130mb-read 125mb-write.

Both are plugged into the same SATA III connections as before on my motherboard, and the 2tb is now my OS drive, so im guessing Windows 10 just quick formatted the 2tb before installing because it doesn't take to long. I used Parkdale to benchmark these, and just wanted some input on this. I thought for sure that my drives would be more stable and possibly run faster on a full format instead of a quick format, but its the other way around, what gives?
post #2 of 8
Thread Starter 
Oh and both drives were fresh when tested, clean with no data, tested right after full format, and tested right after quick formats. The only reason I quick formatted the 3tb was because when I installed windows I accidentally erased the MSR partition for it.
post #3 of 8
I am making a wild guess as I do not own the harddisks. Could it be possible that after your full format that the harddisks are having a higher motor temperature that the firmware tune the motor speed, resulting in a slower performance? Many harddisks tune the rpm accordingly these days for the so call power saving.

Try, with one of the disks, another full format. Leave it idle for an hour or two. Run the test again and see if the performance improves.
post #4 of 8
Quote:
Originally Posted by laptopcentral View Post

Now I originally full formatted both drives with default settings for both through Windows Disk Managment. Both Drives scored around 117mb-Write and 117mb-Read. After doing a quick format with the same default settings through Disk Management, both are running faster.
The 2tb is Now scoring 150mb-Read 150mb-Write, and the 3tb is now scoring 130mb-read 125mb-write.

I don't see it specified anywhere in the post so I'll go ahead and ask.
How soon after the full format did you run the benchmarks?
After fully formatting the drives originally, did you ever store data on the drives before you ran those benchmarks?
Even if the drives were empty while you ran the tests, freespace fragmentation can cause this kind of performance loss if the drives were ever used.

As for personal experience, on my RAID0 (3x1TB) volume I occasionally write and delete hundreds of gigabytes a day of recorded game footage and the only things that bring it back to peak performance are either a freespace defrag or a reformat. (Quick or Full, either works.)

Quote:
Originally Posted by laptopcentral View Post

I thought for sure that my drives would be more stable and possibly run faster on a full format instead of a quick format, but its the other way around, what gives?
I've never seen anybody mention that a full format will make the drives perform better. Not sure what gave you that idea. The reason a full format takes longer is because it checks the disk for errors and detects bad sectors. Once done, the end result should be more or less the same if no errors were detected. If it found bad sectors and reallocated some, that can slightly decrease sequential speeds but that shouldn't be by a large amount unless there are a lot of them.
Edited by Shadow11377 - 2/5/16 at 4:22pm
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post #5 of 8
It is probably due to the number and size of the platters. I assume the 2TB must have fewer higher density platters, so will be faster. What are the exact model numbers of each? If you can tell me I can probably determine the number of platters in each and tell you (then I would need to explain the original results biggrin.gif)

.
Edited by GeneO - 2/7/16 at 6:49pm
post #6 of 8
Quote:
Originally Posted by GeneO View Post

It is probably due to the number and size of the platters. I assume the 2TB must have fewer higher density platters, so will be faster. What are the exact model numbers of each? If you can tell me I can probably determine the number of platters in each and tell you (then I would need to explain the original results biggrin.gif)

.
The issue isn't that one drive is outperforming the other, the issue is that each drive is outperforming itself after a quick format.
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post #7 of 8
Quick reading I thought you were saying that they performed the same with long, so the quick numbers made more sense. I wonder if there is some initialization being done after the long format. Or something was going on in the background during the long format test. The drives should perform the same either way.
post #8 of 8
Quote:
Originally Posted by Shadow11377 View Post

I don't see it specified anywhere in the post so I'll go ahead and ask.
How soon after the full format did you run the benchmarks?

He said "tested right after full format" at the second post.
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