What's the Problem With Drop Box?

i have 20 terabites of data in about a million files in my drop box system. The pegasus drive is where i have my drop box folder. Everything seem locally, right? Ok? So do you have all this stuff on the pagasus trive? Yes. And that's going up to drop box as well. You know, it's all in drop box. What happened is, after the cable got pulled out, well, i plugged it again, and i thought, hopefully nothing bad happened. But obviously something bad did happen because drop box started to re index the entirety of those 20 terabite and million files.