External drives very slow

Discussion in 'OS X Yosemite (10.10)' started by jcxh, Oct 25, 2014.

  1. jcxh macrumors newbie

    Oct 25, 2014
    Both my external USB 3 drive that used to be >100Mbs and my external NAS 125Mbs are drastically slower ~35Mbps after I upgraded to Yosemite - it can't be a hardware issue affecting two different drives - I have a late 2012 iMac 3.4Ghz i7 and 16Gb ram so my local machine isn't the problem. And my connectivity from an ancient XP laptop is faster to my NAS - Apple - what have you done?
  2. simonsi macrumors 601


    Jan 3, 2014
  3. jcxh thread starter macrumors newbie

    Oct 25, 2014
    NAS isn't spot light indexed and external USB drive is already indexed. People should use Blackmagic speed test and see if they are also affected.
  4. VanQuocTuan macrumors newbie

    Oct 26, 2014
    Me too.
    my mbp not index my external hard drive. What should i do now :(!

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3 October 25, 2014