hi,
⁎ You need to use your words and full sentences to describe exactly what you need and what is your question, instead of just point out some information in points. Your needs is not fully clear to me (if English is not your native language then you can use Google translator for example).
shallow replication : replicate to other region not possible full replication doesn't allow more than 2 TB
As much as I can see, Shallow replication supports up to 32TB
Please go over the entire document, and if something is not clear or if it does not cover your needs, then please try to elaborate we I wrote above.
By the way, if all you need is protect against regional disasters, then Azure Backup can be used. Currently Azure Backup supports disk sizes up to 32 tebibyte (TiB) disks.