"Reallocated sector count has increased" email notification

Update. The re-sync took almost exactly six hours instead of the estimated 4.75 hours. I am finally getting around to inputting data that's been piling up since I took the unit off line last week - I know I could have been running the unit the entire time I was waiting for the replacement drive, INCLUDING the time I hot swap the deteriorating drive with the replacement, but I'd rather be safe than sorry (with loss or corruption of any data). As noted above, overall, I've been happy with the whole replacement experience!

I am in process of re-formatting and wiping the three partitions of the old drive before I send it back to Seagate. The wipe of the one 927GB partition (do not know why the RNP unit partitioned this disk into three parts, of which the sizes were: 4095MB, 511MB, and 927GB) is supposed to take over nine hours.