Created new pool instead of importing drive

So, I’ve just moved over to SCALE from CORE and added a few new drives in the process. In my haste to get everything set up, when I got to adding my main media drive, I hit create pool instead of import pool.
The drive that used to have about 3TB of media on it is now a blank drive with used: 456 KiB and available: 3.51 TiB. Is there any way to undo this, or is the drive fully wiped?

It may not be wiped, but it may not be mountable by the old system… what file system was on it?