Disk utility hangs repartitioning external USB-C SSD

rpg25 wrote:

I have an external USB-C SSD that I am trying to set up to be a bootable backup (using ChronoSync).

To do so, I am trying to repartition the drive. But the Disk Utility appears to have hung. Here is what I have seen for more than an hour:

https://discussions.apple.com/content/attachment/1c833b6a-2899-47cf-9563-2594887a6d2e

This is my third time trying this. First I tried it and it hung. I restarted. Same thing. Hard rebooted. Still the same. Any suggestions? Anything I should look for in the console? I don't see anything obvious, but there's a lot of stuff in there.

P.S. this is a very large drive, so I suppose it could be just taking a long time. But more than an hour seems really long.

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Have you looked at https://www.econtechnologies.com/support/chronosync.html

"Partition" a GUID/APFS formatted drive is creating a new Container

DiskUtility.app>View>Show All Devices it is the parent drive that gets erase/formatted/initialized as new

Partition a physical disk in Disk Utility on Mac - Apple Support

—all Volumes share space within a Container, not between Containers(Partitions)

Add, delete, or erase APFS volumes in Disk Utility on Mac

rpg25 wrote:

Thank you very much! It does seem that the issue was the size of the drive. It took more than two hours to finish the partitioning operation, but it did terminate successfully.

It would be nice if the UI didn't "freeze," but instead gave some indication that progress was being made...

Thanks for your update.

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