Has anyone created JFS2 file system on a USB drive attached to AIX server?

We have an IBM Power 710. It has a USB port on the front. I have done some searching and see that there is information out there on how to create a JFS2 file system on USB drives. A few have commented that they would not recommend it, if the server is important, may crash the server... Just wondering if any of you have tried it with success and think it is worth trying. I would like to attach a 1 Tb USB to get a temporary backup while waiting for a tape drive to be configured.