Thunder7ga

I believe I figured it out....seems Scanner marked a single block as bad, and since I had the option for DrivePool to allow Scanner to evacuate on any issue, it did so.   I'm going to add a 3rd drive to the pool, but for now I have disabled the scanner option to evacuate, the drive is healthy except for that 1 block, but will be ready for when it craps out entirely (and I have backups).

I am doing exactly this.  Works well, although I have yet to go through a drive failure (I just set this up on a new build last month).  Seemed like the best balance of pooling and redundancy available for a good price point.  I do also backup all my critical files to an external USB hard drive twice a week.