External Hard Drive Speeds

Discussion in 'macOS' started by coastertux, Feb 21, 2008.

  1. coastertux macrumors regular

    Joined:
    Jul 17, 2006
    #1
    I have a USB2 external hard drive and it takes much longer to copy files to it than copy files back to my internal hard drive (like 2 hours on, 20 minutes off). Is this normal?
     
  2. tuxtpenguin macrumors regular

    Joined:
    May 19, 2007
    Location:
    TX
    #2
    While there is a slight difference in read vs write speeds, I haven't noticed anything that far off.
     
  3. hodgjy macrumors 6502

    Joined:
    Apr 15, 2005
    #3
    It depends on the drive inside, but a general rule of thumb is that drives are usually a little bit slower at writing than reading. Throw that on top of USB not being a constant throughput, it's not out of the question. However, something seems off on your system.
     
  4. coastertux thread starter macrumors regular

    Joined:
    Jul 17, 2006
    #4
    Since "something seems off" what can I do to fix it?
     
  5. abisai macrumors newbie

    Joined:
    Feb 4, 2008
    #5
    Check the System Profiler to see if its running at USB2 speed instead of USB1. If its running at USB1 speed plug it into a different USB port. I had to juggle the connections on my Mac Pro due to a similar problem.
     

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