Photographer in need of storage advice/suggestion
How's it going, everyone? I am hoping that it's the right place to get some answers/suggestions on what I am looking to do. If it is not, please direct me to the right place.
Long story short, I'm a photographer and my main office space is my home office (which I love). I'm currently in the process of redoing some things about my office and that includes replacing my current late-2013 21.5'' setup (ME086LL/A). As far what I am changing - I am upgrading to a 27'' 5K iMac (MK472LL/A) with the 1TB Fusion Drive. I've also ordered a LaCie Thunderbolt 2 USB 3.0 4 TB pro external desktop storage.
As far as storage goes, I currently use a 3 TB Seagate external hard drive connected directly to the iMac 21.5'' serving as the main "Imagevault" as well as anything related to my photography business. I also have a 2 TB Time Capsule (Current generation) connected to the modem/Gateway, serving as the Time Machine, backing up all Apple devices in the house as well as the Seagate.
My question, if you were me, how would you set this up? Ideally, I would like one drive to serve as the primary "Imagevault" or business drive so I am not using the local drive on the iMac, one to use Time Machine to backup all computers in the home, and one to backup the Time Machine backups. Is this overkill? Without getting any feedback, the way I would assume to do it would be to connect the LaCie directly to the iMac via Thunderbolt 2, have the Time Capsule stay as is and have the Seagate back up the Time Capsule. Am I speaking gibberish? Should I have gotten a RAID drive? Please, give me your suggestions on what you would do and please feel free to walk me through it (should there be any specifics).
Keep in mind, speed, function and productivity is key for me. I don't want to be slowed down while I am doing my work because of a spinning beach ball or something that can be avoided.