When I transferred everything last week from my iMac Pro to my new Mac Studio with the M1 Ultra chip, I also transferred several external SSDs.
Everything seemed OK. All SSDs showed in Finder and on the main screen.
However, today two of the SSDs are not showing in Finder or on the main screen.
Has anyone experienced problems with external drives and the Mac Studio?
Thanks.
Did this happened after the macOS 12.4 to 12.5 update?
If so, try Safe Mode as per > How to use safe mode on your Mac - Apple Support
If that doesn't help, what external SSDs and how are they connected to the Mac Studio?
(SSD brand, model number, connection, brand and model of hub if one is used)
Also if they are 2.5" SATA SSDs with high speed USB-A cables connected to the Mac Studio's two USB-A ports, then I would try connecting them to the Mac Studio's USB-C ports using high speed USB-A to USB-C adapters.
Did this happened after the macOS 12.4 to 12.5 update?
If so, try Safe Mode as per > How to use safe mode on your Mac - Apple Support
If that doesn't help, what external SSDs and how are they connected to the Mac Studio?
(SSD brand, model number, connection, brand and model of hub if one is used)
Also if they are 2.5" SATA SSDs with high speed USB-A cables connected to the Mac Studio's two USB-A ports, then I would try connecting them to the Mac Studio's USB-C ports using high speed USB-A to USB-C adapters.
Glad to hear the problem is solved.
I have no issues with externals and the Ultra. I use Sonnett 3 bay pic NVMe SSDs connected by thunderbolt 3.
Followup:
I replugged the 2 SSDs in question into the USB-C ports in the back of the computer itself and they work just fine.
Apparently they didn't like being plugged into the monitor!
Thanks.
External SSD interface with the Mac Studio
