MBP doesn't recognize 10TB external disk

Hi FrankO23,

Does the drive(s) appear in System Information? (Apple menu -> About This Mac -> System Report)

FrankO23,

Thank you for the additional information. The best way to help isolate this would be to take one of the drives and format it to exFAT using your Mac. This way it ensures the block size for the disk is allocated correctly. As it's the case that you are not seeing the disk in Disk Utility, you can try the steps directly from Western Digital in How to Partition and Format a WD Drive on Windows and macOS and How to Format a WD hard drive to exFAT or FAT32 File System.

If you need further assistance you can also Contact Apple Support.

Have a great day!

where to look depends completely on what medium you used for attachment:

If using Thunderbolt enclosure, look under Thunderbolt

if using USB enclosure, look under USB

If using FireWire enclosure, look under FireWire

FrankO23,

Thanks for trying that article. If it's still not showing up in Disk Utility, the next thing to do will be to Contact Apple Support for assistance with these external hard drives.

Have a great weekend.

Hello FrankO23,

It sounds like you have external hard drives formatted as exFAT but your MacBook Pro won't read the drives.

You can try to erase the external drives and reformat them to exFAT using your Mac by following Erase and reformat a storage device in Disk Utility on Mac. Ensure you backup any data on your drives to your Windows computer before erasing. After erasing it, test it in both computers and if it works, transfer your data back.

Hope this information helps.

Have a good day.