Damn - We're doing the opposite of that. We have a 30 restore point Forever Incremental strategy on Primary Fast Storage, and 7 restore points + 4x Weekly & 24x Monthly GFS on a Data Domain.
I would recommend 7-14 restore points on the source site and 30 restore points + 24x Monthly GFS on a Data Domain.
Does that mean, if I have Backup Copy's from the primary storage to the Data Domain - and the Data Domain organizes the Restore Points into GFS backups - I can switch off Health Checks on the Data Domain Backup Copys?
Health check and Surebackup are different things. Health check is a part of backup copy job and going to help with data integrity.