I use an iMacPro as my principal photo editing workstation. I use separate C1Pro catalogs for each year because I found that after catalogs have about 15k images, C1Pro slowed down. I use a referenced folder structure. My C1Pro catalogs are kept on my internal SSD. My referenced folder structure was kept on an OWC ThunderBay4 RAID drive connected via Thunderbolt 2. This set up worked great for a few years. The read/write speed of the ThunderBay4 drive averaged 500 to 600 MB/S.
I have 8-bay Synology DiskStation NASs installed on a 10gb ethernet network. I created a partition on a Synology to hold my referenced folder structure which contains about 6TB of images. This set uses Synology's RAID system with redundancy. The read/write speed averages 500-700 MB/S. This setup eliminated the OWC ThunderBay4 from my workflow and added 1 drive failure safety. All images are backed up real time to a second Synology on my network and then to a third Synology located at my office about 10 miles away for off-site back ups.
They Synology-based set up worked great, but occasionally I would have to "locate" my image folder after opening a C1Pro catalog because C1Pro could not find the folder on my network. This never create a problem, but it was an inconvenience.
Finally, I bit the bullet and purchased an OWC ThunderBlade 8TB SSD RAID and connected it to my iMacPro via Thunderbolt 3. The read/write speed of the ThunderBlade exceeds 2,100 MB/S! It screams.
Using the Synology "Drive" utility installed on my iMacPro, the ThunderBlade drive is real time backed up to my Synology. This is the best set up that I have had and C1Pro fiies even when using my larger c1Pro catalogs.
My suggestion is that you get the fastest direct attached storage you can afford to hold your referenced folder photos. The referenced folder structure makes back ups easy and these images can be accessed with any other application that you what to use in the future. I would stay away from using C1Pro catalog to store your originals. Just make sure that you back up your images and C1Pro catalogs frequently. I have my C1Pro catalog back up preferences set to every time when I quit a session. My iMacPro internal SSD is also backed up using TimeMachine.
C1Pro Sessions are a cool feature, however, I don't use them. I might use them if I traveled with a laptop with C1Pro installed, but I travel light. I only bring my iPad Pro with me as I have no need to do image editing while on vacation.
I hope this helps.
Regards,
Bud James
Please check out my fine art and travel photography at
www.budjames.photography or on Instagram at
www.instagram.com/budjamesphoto.