WD 3tb external having efi problems

Discussion in 'Mac Accessories' started by vigeoh, Mar 7, 2014.

  1. vigeoh macrumors newbie

    Mar 22, 2009
    My 3tb western digital hd was having very slow transfer rate today so I ran verify disk permission and I was given the message "external the partition map needs to be repaired because there’s a problem with the efi system partition’s file system" does this mean my hard drive is on the way out and I should transfer data somewhere asap? I was given the same message when i tried to repair disk.

    information about set up:
    3tb western digital hard drive with 100gb partitioned to windows

    Thanks a lot,

  2. vigeoh, Mar 7, 2014
    Last edited: Mar 7, 2014

    vigeoh thread starter macrumors newbie

    Mar 22, 2009
    After a restart and rerunning disk utility I now get the message "this disk doesn’t contain an ego system partition. if you want to start up your computer with this disk or a include it in a raid set, back up your data and partition this disk"

    i do not want to start my computer up this drive nor is it part of a raid set up...


    another restart and disk utility appears to be running with no problems, but still, can anyone tell me why this happened? should i be worried about the health of my hard drive?


    transfer rate is still very slow

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