Real World Tests – Multitasking Performance

We apply the same changes to our Real World Multitasking Performance tests and have also modified the test to relate to typical external storage device uses. We now measure the time that it takes to Zip a single 300MB file while copying a 4.5GB file to the external device from a SATA drive.

Multitasking – 4GB File Copy + 300MB File Zip, seconds, lower is better
Within Drive To Drive (From SATA) Difference
AcomData E5 320GB (USB) 186.586 199.154 12.568
AcomData E5 320GB (FireWire 400) 173.453 187.438 13.985
Seagate 120GB USB 199.416 197.086 2.33

Oddly, the difference between Zipping the single 300MB file to the drive took only 2.33 seconds less to complete than Zipping the file directly on the device whereas the difference in times during testing the E5 was between 12-14 seconds.

Real World Tests – File System Performance (cont’d) Final Thoughts
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  • foot167 - Thursday, September 29, 2005 - link

    I just returned the 300GB model today after 3 weeks of use. Everything I read about them said they were terrible but I had to give them a shot anyway. Sometimes my computer wouldn't recognize the drive. it would say no drive there. then on monday the drive decided that it was unformatted and needed to be reformatted. good thing that i kept a copy of everything i put on the external on my internal drives.

    the 300gb one can be had for under $200 and even less after rebates.

    How about some reliability tests on these drives. Does the firewire/usb interface affect the reliability of these drives? Are they prone to crashing for some reason?
  • ScottyDog - Friday, September 30, 2005 - link

    I agree with your comments about reliability with these external drives. I have one and have the same problems with the disk suddenly becoming "unformatted". I have done a google search and this is a huge problem with these external USB or Firewire chipsets whether they are are the Oxford or Prolific flavors.

    Somebody really needs to do an article about what is going on here as I have resorted to leaving my drive off unless I am doing a backup and then need to restore otherwise all my data gets destroyed.

    I originally thought it might be due to write caching and changing it to safe mode but it makes no difference with mine. If I leave it on eventually it becomes "Unformatted".

    type this into google and you will see this is a wide spread problem with these external drives: windows delayed write failure
  • Googer - Thursday, September 29, 2005 - link

    Dosen't it have 1394? I won't buy an External HDD with out 1394a and/or 1394b.
  • MASCARNHAS - Monday, June 21, 2010 - link

    I've used Report and although its great, I've had better luck with WheresTheFreeSpace. It is Modeled after a PC application that is very popular called <a href="http://www.wheresthefreespace.com">Treesiz... (but its for Mac).</a>

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