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Windows 7: Build your own External Hard Drive

22 Jun 2011   #81
Cr00zng

Windows 7 64-bit, Windows 8.1 64-bit, OSX El Capitan, Windows 10 (VMware)
 
 

Thanks Essenbe...

That difference in time seems negligible on the surface, but...

If my calculation correct, there's about 10% throughput difference between the drives if you divide the size of the image with the time in seconds using your numbers.

Internal:

8.1 / 175 = 52 MBs

External:
8.1 / 176 ~ 46 MBs (rounded down from 46,022,727.27272727 bytes)

Macrium collects the data, compresses the file, and sends it to the drive; the chances are that it'll not max out the internal or the external drives' throughput. In my opinion a benchmark tool would be more indicative of the performance differences than a real-time test...


My System SpecsSystem Spec
.
22 Jun 2011   #82
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

Cr00zng, see if this helps but I still say Samsung's are the only drives I remember that write faster than they read.
Internal Samsung
Build your own External Hard Drive-samsung-internal.png

External
Build your own External Hard Drive-external-atto.png


My System SpecsSystem Spec
23 Jun 2011   #83
Cr00zng

Windows 7 64-bit, Windows 8.1 64-bit, OSX El Capitan, Windows 10 (VMware)
 
 

That's some interesting performance results with your Samsung drives...

Upto 8K size the internal drive is between 10-30% faster than the external one. Beyond the 8K mark, the advantage is flipped in favor of the external drive and it is between 1-3% faster. This might be due to ATTO that I haven't been using.

I didn't see any drive that would write faster than read, odd to say the least...

I'll retest my Seagate drives with ATTO and compare the results with yours.
My System SpecsSystem Spec
.

23 Jun 2011   #84
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

Quote   Quote: Originally Posted by Cr00zng View Post
That's some interesting performance results with your Samsung drives...

Upto 8K size the internal drive is between 10-30% faster than the external one. Beyond the 8K mark, the advantage is flipped in favor of the external drive and it is between 1-3% faster. This might be due to ATTO that I haven't been using.

I didn't see any drive that would write faster than read, odd to say the least...

I'll retest my Seagate drives with ATTO and compare the results with yours.
Here's my Seagate 500GB Barracuda 7200.12

Build your own External Hard Drive-seagate-500gb.png


My System SpecsSystem Spec
23 Jun 2011   #85
Cr00zng

Windows 7 64-bit, Windows 8.1 64-bit, OSX El Capitan, Windows 10 (VMware)
 
 

Well, I've done my testing as well and I am not sure just how accurate ATTO is?

Internal Seagate 1 TB 7200.12:

Build your own External Hard Drive-seagate-internal-atto.png

External Seagate 1 TB 7200.12:

Build your own External Hard Drive-seagate-external-atto.png

The external drive is faster than the internal one, up to 2 KB between 200-300% faster, which is the opposite of the CDM results. With the exception of the 64 KB, all others are faster with the external drive, albeit by a much smaller margin.

On this system (Intel P67) the only difference is the data bus where the drives connected to; the internal one is hooked up to the SATA 2 port, while the external one connected to the eSATA 3 port provided by the Marvell 91xx chipset. You may have a similar setup with your Asrock P67 board...

It's possible that the Intel SATA 2 port still have some minor performance issues, I don't know and it is just a wild guess...


My System SpecsSystem Spec
23 Jun 2011   #86
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

I have the same setup. But both of mine are hooke up to the P67 sataII ports. The external is through a front panel connector on my case.
My System SpecsSystem Spec
23 Jun 2011   #87
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

See if this is better. But the internal is 6 mos. older and has a lot of data on it. The external is new.

Internal
Build your own External Hard Drive-hd-internal.png

External

Build your own External Hard Drive-external.png


My System SpecsSystem Spec
24 Jun 2011   #88
Cr00zng

Windows 7 64-bit, Windows 8.1 64-bit, OSX El Capitan, Windows 10 (VMware)
 
 

I'll test the drives tonight; mine had been purchased at the same time and presumably, they are the same.

I didn't even tell you, but you have already convinced me that next time I should buy Samsung SpinPoint drives...
My System SpecsSystem Spec
24 Jun 2011   #89
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

Quote   Quote: Originally Posted by Cr00zng View Post
I'll test the drives tonight; mine had been purchased at the same time and presumably, they are the same.

I didn't even tell you, but you have already convinced me that next time I should buy Samsung SpinPoint drives...
They've been good to me, so far.
My System SpecsSystem Spec
24 Jun 2011   #90
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Cr00zng View Post
Thanks Essenbe...

That difference in time seems negligible on the surface, but...

If my calculation correct, there's about 10% throughput difference between the drives if you divide the size of the image with the time in seconds using your numbers.

Internal:

8.1 / 175 = 52 MBs

External:
8.1 / 176 ~ 46 MBs (rounded down from 46,022,727.27272727 bytes)
Actually, your calculations are not correct

8.1 / 175 = 0.04628571, ...which is about 46.2MB/sec

8.1/176 = 0.4602272, which is 46.02MB/sec

So, actually a very small difference...or about 1 second over nearly 3 minutes.
My System SpecsSystem Spec
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 Build your own External Hard Drive




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