I was running a test to make sure rsync would transfer with the correct permissions. So I setup a test folder that I could play with but a misconfiguration cause the server with the data to delete all its data.
Edit: If it's ZFS, it's gone. If its UFS there are some program you can buy to do data recovery. But I wouldn't hold my breath on a high degree of success.
Unfortunately there are no recovery tools to run on ZFS.. If the data is gone it'll be truly gone.. The only thing I can think of is if you had used CIFS shares and files got moved to the recycling bin on pool? What command did you run?
I used the web interface to setup the rsync. Its funny. I was going to used rsync to sync these two servers together so they would be each others backed up. Now there is nothing.