Changing Smallest Drive before drobo is full

Hey guys, Quick question. I want to take out my smallest drive and put a larger one in. The drobo is not full or at a “warning” stage. Is it safe to just go and eject the smallest drive and put the larger one in? Do i just swap it out or do i do anything before that?

just pop it out, and pop the new one in,
it will go into rebuild mode which will probably take from 1 to 3 days depending on how big and how full it is. while it’s in rebuild mode, the lights will flash, but you will still have access to your data, although it might be a bit slower.