I am quite afraid of the space needed.
I need to make 7 daily backups (a week) with (1 full backup and other incremental).
4 backups one a week (1 full and other incremental)
12 monthly backup (1 full and other incremental)
My vms are on two datastores one with 731 gb used and the other with 807 for about 1.6 tb of total space.
I have maximum 24 tb of space. I don't know if they will be enough.