I figured I would ask here as it is in this forum that I was prompted to purchase a drobo! Question is how long is normal for the yellow (red) and green lights to flash when adding or changing a drive. I added a 1 tb drive to a drobo that previously had 2 1 tb's and 2 500 gigs and 48 hours later it is still flashing. I understand it has to rewrite 1 tb of data (what I had on there) but is that normal for the amount of time? Drobo is working just fine right now, just wondering when the flashing is going to stop.