Why do CoreStorage external drives stay active after eject?

Discussion in 'OS X Yosemite (10.10)' started by benguild, Dec 15, 2014.

  1. benguild macrumors 6502a

    Joined:
    Jul 29, 2003
    #1
    I've noticed that USB drives that are configured with CoreStorage can often still seem like they're writing data or spinning to various areas of the drive for a few minutes even after the volume is ejected and removed from the Desktop.

    It doesn't seem that safe to disconnect them, but I may be wrong.

    Does anyone know what's actually happening and if it's OK to remove them?
     
  2. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #2
    Mysteries of Core Storage

    Not me. Closed source Core Storage is too mysterious.

    If none of the volumes associated with the physical drive are mounted: yes.
     

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