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Windows 7: Why is does this hard drive have slow access times?

01 Mar 2014   #1
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 
Why is does this hard drive have slow access times?

I've got a Seagate 160gb (ST9160301AS) hard drive that has a good SMART report - no bad sectors, no crc errors, etc. And it has a respectable 50MB/s throughput, over a nice smooth curve. But it's access times are really bad, at 26+ ms. I've chkdsk /r'd it, defragged and optimized it, but its performance remains abysmal. Is there anything I can do for it?


My System SpecsSystem Spec
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02 Mar 2014   #2
DeBaas

Windows 7 Ultimate x64
 
 

Goto gparted.org, download/create a bootable version.
In gparted create a new partition tabel, create a new ntfs partition and try your acces time's again.
My System SpecsSystem Spec
02 Mar 2014   #3
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

What would partitions and file systems have to do with hardware response times?
My System SpecsSystem Spec
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02 Mar 2014   #4
DeBaas

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by paul1149 View Post
What would partitions and file systems have to do with hardware response times?
Possible wrong partitioning with extra sector/cylinder translation.
Also read http://disablehddapm.blogspot.nl/
My System SpecsSystem Spec
02 Mar 2014   #5
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

A ST9160301AS is a 5400 rpm drive and they are just slow.

From post #1
Quote:
I've got a Seagate 160gb (ST9160301AS) hard drive
My System SpecsSystem Spec
02 Mar 2014   #6
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

I've been through dozens of these drives and never had one with access times of 26ms.

I've got the drive tethered to my desktop and after backing up with play with the mbr and partitions.

I also had turned off APM via HDDScan and it did nothing. I'm also not sure whether HDDScan's control of that setting is permanent or not.
My System SpecsSystem Spec
02 Mar 2014   #7
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

Ok, I deleted all partitions and created a new NTFS partition. Then I ran the test again, with no change. The Before pic is first. This is over a USB 3.0 connection, which I think doesn't restrict anything. IAC, I've seen access times of 10ms less over the same connection on other drives.


Attached Images
Why is does this hard drive have slow access times?-st160-before.png Why is does this hard drive have slow access times?-st160-after.png 
My System SpecsSystem Spec
02 Mar 2014   #8
DeBaas

Windows 7 Ultimate x64
 
 

http://www.seagate.com/staticfiles/s...100528359d.pdf

Look at the specs on page 9 and 10.

Not only creating a new partition but also a new partition table ?
Don't know how HD Tune is testing but a full HD stroke can take up to 30 msec.

More info about HDD optimizing programs:

http://sourceforge.net/apps/trac/smartmontools/wiki
My System SpecsSystem Spec
02 Mar 2014   #9
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

This drive's average access times approach that of what they call full stroke reads - the worst case scenario, when the target is on the other end of the drive. Maybe the arm of the drive is experiencing friction or other problems. Another interesting thing is how similar those two profiles are.
My System SpecsSystem Spec
03 Mar 2014   #10
user31

Windows 7 Ultimate x64
 
 

Looks like it might be time for a defrag. Not sure if it is a mechanical problem.
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 Why is does this hard drive have slow access times?




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