phil987AQ wrote:1) What is the relation of "Restore Points to Keep" vs "Keep the following restore points for archival purposes". Could I just set restore point to keep to zero if I am using the bottom section!?
The minimum value of retention in the regular chain is 2, you can set it in case only GFS restore points are required. You can read more about backup copy job retention mechanisms here
phil987AQ wrote:2) Do I need to use a separate backup repository if I'm just using long term retention? If I do (looks that way) can I just create another repository on the same Data Domain?
Yes, you need to specify a different repository, which can point to another folder on the same storage.
phil987AQ wrote:3) if I put '3' in the Yearly backup it will keep 3 years of backups of the 1st Sunday of the year (or whatever is set in the schedule). Am I reading that correctly?
Your understanding is correct.
Please feel free to contact technical support with the issue described in your second post.