Cool idea! Will keep this in mind, if I run into a similar situation.
Well well well…I just updated the firmware on my EX2100, same error and the kicker is this: The disk status shows the exact same measurements on the disk threshold values for the SMART data… I still think this firmware has a bug in it.
This is exactly the same data on my DL4100, which threw an error after the update. Too strange not to doubt it.