In order to replicate the issue just connect any external SSD wait for a while and it will be disconnected with message "Disk Not Ejected Properly". SSD is connected to M1 MacBook Pro. It's neither a cable issue because I tried multiple cables, nor an SSD issue as everything worked just fine before upgrade.
Here is the issue that I've raised https://feedbackassistant.apple.com/feedback/13263285
I believe that if we raise couple more similar issues Apple will notice it, because the one that was reported by me - says : Recent Similar Reports:None
Useless for now what I suspect is a failed disk.
I suggest you cut to the chase and replace the disk.
This disk is couple month old, and works fine with windows, so my assumption is that apple messed up in Sonoma somehow, maybe it is related to power management of the usb c ports
OK
Latest update not fix this issue still disconnect m2 drives
I can confirm that this is happing in Sonoma for me occasionally.
Same thing is happening for me after upgrading to Sonoma today. M2 Mac mini keeps randomly disconnecting my external Kingston SSD. Very annoying
Just started happening for me, too. Have not had any luck getting it to work; going to try formatting the drive I guess and see if that fixes it.
Same here on Mac Mini. Tested with TB ports so far. Freshly formated NVME. I hope it will be fixed soon. Installing/downloading large libraries is barely possible now
Formatting my drive and starting over from scratch appears to have fixed the problem.
Is it possibly Apple is writing code to steer customers from buying cheaper storage and avoiding the expensive options Apple offers, (most especially with the 2023 Apple M-2 MacMini?$$$) IMHO
Has anyone ever tried to disable "Put hard disks to sleep when possible" and check, if that helps? Searched the thread, but I didn't find anything.
External SSD keeps disconnecting after upgrading to Sonoma
