I use my Drobo for Time Machine backups, which very quickly eats up disk space. With 2 drives installed, the Drobo had a capacity of a little less than 1TB, which was about half full. Since it has 4 bays, that leaves plenty of room for expansion.
Last week, a few places were selling the WD Caviar 1TB SATA drive for $95, so I took advantage of that to upgrade my Drobo before I ran out of space. When the drive arrived today, all I had to do was slide it into an open bay and it was immediately recognized. I didn’t even have to shut down the Drobo to install the drive.
It now has 1.2 TB free out of 1.81 TB available space.
 WD 1TB SATA Drive |
 Installing the drive |
 Drive is ready |
 Done! |