OK. Correctly puzzled right here.
I’ve received a G-Pace 40TB Raid (the drive is powered by the wall) linked to my 2019 iMac on Mojave 10.14.6 through Thunderbolt 3. Each now and again the drive simply drops out but it surely’s invisible and there is no notification that it has completed so. That’s to say…
There is not any notification from the OS that the drive was unmounted
The icon stays on the desktop.
Nevertheless, in the event you attempt to entry the drive for any motive, even to pick it. The entire finder goes into beachball mode. If I attempt to use Disk Utility it will not work. Relaunching the Finder fails to relaunch. The one strategy to get better is relaunch the finder, carry out a shut down, await the OS to go to black then HARD SHUTDOWN with the ability button, restart and every little thing is ok after that.
I’ve tried to reset the SMC
I’ve tried to “zap” the PRAM (NVRAM)
I’ve additionally tried a brand new Thunderbolt Three cable (I am on the third one).
I am not adequate to know easy methods to precisely search and browse the system.log to see what’s taking place.
The one clue I get is from the G-Pace software program. It retains a log of “NVRAM Occasions” and the constant message is “The system is stopped by host unplug”. Now I assume the NVRAM is the one within the RAID enclosure not from the iMac. Nonetheless, if it was unplugging itself, I might suppose that the OS would notify me, however alas no.
At this level I am unsure if it’s the Mac or the Drive. However I wish to rule out that it is not the Mac. Can anybody level me in the direction of a log or one thing that I needs to be making an attempt to take a look at to trace this down. There is a time stamp on the G-Pace log that tells me when the occasion occurred so I’ve that go off as nicely.
I’ve received a name into Apple Assist who advisable reinstalling the OS and establishing a brand new person account (neither labored), and I’ve received a observe up name setup for tomorrow.
So any assist or recommendations to trace down what is going on can be useful, I even have the choice of exchanging the drive and that is likely to be what has to occur however within the present surroundings I wish to guarantee that I am doing what I can first.