Slow external HDD

Discussion in 'MacBook Pro' started by 10-Dee-Q, Oct 18, 2011.

  1. 10-Dee-Q macrumors 6502

    Joined:
    May 10, 2006
    Location:
    Bandung, West Java, Indonesia & Singapore
    #1
    hi i just bought a seagate external HDD 1TB
    but when i tried to copy my file to the drive it's slow..
    and also when i tried to copy a file from the external to internal on my MBP its slow as well

    i don't know how slow it is but for example when i watched a 720p MKV from the external HDD using VLC it sttuters about every 10-20 seconds,
    is that normal ?

    i dont think thats the External HDD fault as i tried using my friend's external HDD for watching a 720pMKV, it sttuters as well.

    can somebody help me ?
    or the speed od USB 2.0 is to slow to trasnsfer the 720p MKV file ?

    1 more thing that i noticed is that everytime i plug an eexternal HDD my spotlight try to "index" it, and i don't need that function, maybe that's the culprit ?
    but how do i set it so that my spotlight wont try to indexing the external HDD ?

    thank you.
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    No, 720p or 1080p .mkv files don't have a bitrate high enough to fully saturate the USB 2.0 interface, which offers 30 to 37 MB/s.

    System Preferences > Spotlight > Privacy and add the HDD to that list.



    Have you tried AJA System Test yet to benchmark your HDD?
     
  3. 10-Dee-Q thread starter macrumors 6502

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    #3
    ow ok
    so is that my problems ?
    or yo think there's another fault somewhere ?
     
  4. simsaladimbamba

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    #4
    Spotlight might be your problem.
    Again, have you tried AJA System Test yet to benchmark your HDD?
     
  5. 10-Dee-Q thread starter macrumors 6502

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    #5
    okay
    i'll try taht test, thank you,

    whats the normal result should be for the test ?

    another thing, i just replace my RAM last week
    can it be the culprit ?
    but everything else seems fine, no crashes or anything.
     
  6. simsaladimbamba

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    #6
    What did it say? It should be between 25 to 35 MB/s.

    What did you replace with what exact model in what exact MBP?


     
  7. 10-Dee-Q thread starter macrumors 6502

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    #7
    ooops okay i didn't see it just now :p

    my MBP comes with 2 x 2GB ram, the brand is hynix if i'm not mistaken
    then i bought this corsair CMSA8GX3M2A1066C7 http://www.corsair.com/memory/mac-m...-ddr3-sodimm-memory-kit-cmsa8gx3m2a106c7.html

    its the correct DDR3 PC 8500 1066 CL7

    thats the only thing that i upgraded

    thats should be okay right ?

    how to check wheter i have a bad ram or not ?

    ----------

    Mac Book Pro 5.3 15" core 2 duo 2.66Ghz (late 2009 Model)
     
  8. derbothaus macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #8
    What player are you using? Are you sure it isn't the file itself?
     
  9. 10-Dee-Q thread starter macrumors 6502

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    #9
    i'm using VLC
    no the file is fine if its played off the internal HDD
    the problem only occurs if its on external HDD
     
  10. simsaladimbamba

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    #10
    What did AJA System Test report then?

    You could also analyse the .mkv file via VideoSpec (I prefer that, though it hasn't been updated since 11/2009), MediaInfo Mac (10/2010) or MediaInfo (4/2011, there is a Mac OS X version to download, VideoSpec and MediaInfo Mac are using the same library as MediaInfo) and attach the report to your next post.
     
  11. 10-Dee-Q thread starter macrumors 6502

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    #11
    i did test using the aja test

    Write 1.6 MB/s
    read 37.0 MB/s


    its there anyway to test my RAM ?

    ----------

    the aja test for my internal is

    98.1 MB/s
    100.1 MB/s
     
  12. simsaladimbamba

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    #12
    The write speed are abysmal on that external HDD, but the read speed is more than okay.

    To test your RAM: http://forums.macrumors.com/showthread.php?t=1247109
     
  13. 10-Dee-Q thread starter macrumors 6502

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    #13
    so how do i fix it ?
    he drive seems to be normal when attach to my friens MBP

    :(
     
  14. simsaladimbamba

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    #14
    Run AJA System Test again to verify, you could also try XBench. But other than that, I don't know how to fix it, only to measure it.
    Maybe copy a large file to the HDD and look under Disk Activity in Activity Monitor.

    Btw, have you checked the .mkv file with one of the tools I recommended yet?
     
  15. derbothaus macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #15
    If you can transfer the data off the external you could try to reformat it. You could also try to repair the disk with Diskwarrior or Disk Utility prior to doing that. Other wise it could be a bad cable, bad I/O port or faulty (almost dying) hard drive.
     
  16. AlexMaximus macrumors 6502

    AlexMaximus

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    #16
    the mainstream shopping habit...



    The biggest problem with external HD's are the hard competition and price points of the retailer to make profit. If you bought your external HD just around the corner at some retailer, you usually end up with a very bad quality. I bet you got a "good deal" below 100 bucks.

    This means a cheap HD controller, a slow 5400 rpm hd with 8 MB cache max and a cheap china plastic case body with toxic lead paint. Of course you got no FW 800, no FW400, no SATA, no fast controller - so what do you expect?

    You might as well complain about a One Dollar Burger (sales price!) at xxx in terms of missing quality, missing nutritional value, missing organic origins and monsanto included poisons..

    If your external HD price tag was below 70 dollars, there is a high chance your HD was assembled by a 5 year old that works a 16 hour shift at Foxconn, living in a dumpster.
     
  17. GermanyChris macrumors 601

    GermanyChris

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    #17
    Politcal Much??
     
  18. AlexMaximus macrumors 6502

    AlexMaximus

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    #18
    sorry...

    Sorry, I had a real tough one today ...
     
  19. djrobsd macrumors 6502a

    Joined:
    May 2, 2008
    #19
    I'm not sure if anyone mentioned this, but you should try a new cable, and if that doesn't work then I would order an enclosure only (with no drive) and take that drive apart and put it in the new enclosure. Your best bet on a mac is to get a firewire one, you will see speeds of 60+ on the firewire drives. Before spending any more money though you should also see if you can borrow a friend's USB drive and check it with AJA as well. If you're getting the same abysmal results (especially the 1mbs write) then you may have a USB issue on your system. BTW when you run AJA make sure you run it several times and get an average sample of the results.

    The RAM would not be causing these issues, but if you're paranoid about it, take the new RAM out and put the old RAM back in, it's not that hard to change out the ram.
     

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