I recently bought a 20Tb Drive (Twin 10s) with Thunderbolt 3. Installed and configured as Raid 0. Copied over 2Tb of data without a problem. Ran perfectly. Went on holiday for a couple of weeks and iMac and MacBook have autoupdated to Catalina 10.15.7 and now the drive no longer works.
Attempts to use the configurator tool result in a message “No devices found”. Apples Disk Utility cannot find it either. You can hear the drives spin up after powering on, a few clicks a whirs and then it just sits there softly vibrating. The software update may just be a red herring and the drive may have failed. But I’m open to suggestions and help. And yes I did try a new cable today too.
You could reinstall the software driver that came with your device. Or you to
https://support-en.g-technology.com/app/products/detailnew/p/15
to get the software. The OSX update could have deleted the drivers.
You can check under “System Reports”, “USB” or “Thunderbolt” to see if the device is list under there.
