I have recently installed MacOS Server on my iMac running Sierra 10.12.4. I am getting an occasional alert that a Volume is not responding.

The message is of the form:

Volume "…" not responding

I now have 4 such messages, but the id of the volume keeps changing. I don’t think I have so many volumes attached, so I can’t work out what’s going on.

  • how can I discover more about a particular volume from the id?
  • why would it keep changing?
  • 1
    We need some more context like where you are seeing the message, a few samples of the changing volume id, etc. Can you please post the *exact" messages you are seeing?
    – Allan
    May 14, 2017 at 13:45
  • 1
    @Allan In the Alerts Section of the Server App. Volume "7B84793E-1261-4B45-A4F1-118E5F251463" not responding. The summary: The volume "7B84793E-1261-4B45-A4F1-118E5F251463" is no longer accessible. Loss of this volume may affect services or applications on the server.
    – Manngo
    May 14, 2017 at 23:27

1 Answer 1


The Mac OS X Server disk watcher is pretty sensitive, and it seems to get triggered by apfs volume snapshot notifications (they will have "@-snap" in their names). It may also trigger on mobile time machine volume unmounts which as I recall looks like a uuid. If it is not a volume name that you recognize, I would not worry.

  • I get similar error messages but no "@-snap" in the name. I think it could be due to the google-drive which is not responding. I didn't have this message before installing the Drive.
    – scorpio72
    Dec 2, 2017 at 22:28

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