G-RAID removable TB2 not mounting

I’ve been using this product for years with no issues – this week it’s suddenly stopped mounting.

There are only two things that have changed this week: putting a new pair of drives in, and updating to Big Sur. I tried putting the old drives back and they’re not mounting either, so I don’t think it’s that! Everything worked fine when I first configured the new drives yesterday, but when I powered up this morning I couldn’t get them to mount or even show up in Disk Utility. The G-RAID does show up in System Information.

I’m using a 2017 13" MacBook Pro, running macOS Big Sur 11.1

So far I’ve tried:

  • Both Thunderbolt ports and the USB port
  • Reseating cable at both ends
  • Rebooting Mac and G-RAID

Does anyone have any suggestions for what might be wrong/how to troubleshoot? Thanks!

FIXED…the problem turned out to be the Thunderbolt ports on my MacBook, not the G-RAID. Resetting my NVRAM made everything magically work again.

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