I just set up Duplicati on my Unraid instance backing up to Backblaze B2. I set up to run twice a week and store all backups within past 7 days, 1 backup per week for the next 4 weeks, and 1 backup per month for 12 months. My initial upload was 26Gb and ran for over 8 hours (5.5mb/s transfer speed… not great.)
I read a bit about Duplicati 2.0’s backup methods but I am wondering and just want some clarification… When the next scheduled backup runs, will it be sending all 26Gb again? or just the delta? or something in between that?
I ask because I can’t saturate my upload bandwidth for 9 hours several times a week, It’s just too impactful.
would love some feedback here. Thank you,