finding advices for backup strategy

Hi All,

I am new to backup world, so it is helpful if you can give me advices on how to decide a backup strategy if the requirements are:

1. Off-site archieve backup yearly
2. Off-ste archieve backup monthly
3. Be able to restore at any point in time within 30days

Note: i am using BE2012 + 24 slot Dell tape library - LT05

What i think now is to creat media set as below and backup schedule accordingly

1. Yearly backup (Full backup) : at the last Friday of year ( Saturday and Sunday are weekend, no need to backup)
   - Overwrite protection : no overite
   - Append period : 2 days ( it takes 2 days for backup full system)
2. Monthly backup (full backup): at the last Friday of month. But if it is the last friday of year, yearly job will take place
   - Overwrite protection : 1 year ( this tape can be used for next year, for example "January")
   - Append period: 2 days
3.   Weekly backup (full backup): at every friday. But if it is the last friday of year or month, yearly or monthly job will take place
   - Friday1: OPP = ??? ; APP = 2 days 
   - Friday2: OPP =???; APP = 2days
   - Friday3   OPP= ???; APP = 2 days
   Note: i am sure which is the approriate number for OPP of friday1...3. Can you advices me on this?
4. Daily backup ( incremential backup)
   - Happen from Monday to Thurday
   - Use 16 tapes, each for Monday1, Tuesday1,..... Wednesday4, Thursday4.
   - OPP : 1months, APP: 1 day

Thanks in advance for your help.

Regards,

Tho