Storage and back up advice please
My MBP is now full and I need to remove my Photo Library and store it elsewhere.
I have about 200GB of Photos and another 200GB of in iTunes (plus about 2TB of other remote storage).
I currently back-up my MBP via Time Machine to my 2TB Time Capsule and then, additionally, to about ten portable USB hard drives.
I've used this system for about a decade and now some of the portable drives are becoming susceptible to failures.
I am reluctant to use iCloud Photo Library as I have a detailed photo naming and filing convention and have found previously that any migration to a new system is usually fraught with difficulties.
What solutions do other users apply for such large libraries?
One specific question is could iCloud (not the Photo Library version) be used as a back-up storage solution for Photos (or iTunes)? In other words, store a back up of the source file in my iCloud storage plan).
Any help or observations appreciated
MacBook Air 13", macOS 10.14