It's not supported unfortunately to register those as Storage Credentials. But the ask seems to be coming up more frequently and I believe Product is in "Discovery" phase to support it in UC. Here are some standard questions that might help with collecting evidence.

~Mohan Mathews.

1. What use cases would be unblocked?
2. What data volumes do you have in these storage systems?
3. What workarounds have you tried? What makes this CUJ difficult?
4. What competitive solutions are you considering?