External Hard Drive

Discussion in 'macOS Mojave (10.14)' started by Halo_2, May 31, 2019.

  1. Halo_2 macrumors newbie

    May 5, 2019
    2012 MBP with 1tb 950 SSD

    After fresh install macos mojave 10.14.5 the light on my external seagate hdd flashes up then goes away about 30 seconds later comes back on then finally shows up in finder but the light starts flashing like a heartbeat.

    Have reset the SMC and PRAM
  2. NoBoMac macrumors 68020

    Jul 1, 2014
    Don't worry.

    I've got several disks that have LED flashing when idle. Only time they go out or steady when ejected.

    Also might be affected by power settings (ie. Power nap turned on, putting disks to sleep or not).
  3. Halo_2 thread starter macrumors newbie

    May 5, 2019
    Works fine under a windows based laptop, power settings turned off.
  4. Honza1 macrumors 6502

    Nov 30, 2013
    I assume this is not NTFS disk? If it is NTFS, then how are you mounting it to OSX? Could be your ntfs utility needs upgrade to Mojave version? NTFS utility I have (NTFS for Mac) uses kernel extension to make NTSF disks writable and that needs to be compatible with kernel version. Or are you mounting it read only with OSX?

    Anyway, in my experience (with OSX HFS+ disks) slow disk mounting may be sign some issues OSX has with the disk. I would run DiskUtility and check the disk - of the format is compatible with DiskUtility, of course. Windows may be more forgiving/better in handling whatever specific errors you may have on the disk.

    Also, after upgrade OSX could be indexing the disk for Spotlight - assuming format supports it, which I do not know since you did not tell use that the disk format is.

Share This Page

4 May 31, 2019