I'm not sure what happened, but after upgrading my 320gb drive with a new 2tb apparently another one of my older 2tb drives has issues. I'm pretty sure it is my WD EARX in disk position 1, but I'm not used to how the log is formatted so I want to make sure.
Also, I am unable to format the new drive and am not sure if this is the issue or not, but I can't put the working 320GB back in place to replace the possibly failing WD drive because it is an "invalid configuration".
Log posted below and any help would be much appreciated.