I made a lot of analyse stuff.
I used a windows storage analyse application (Wiztree, a “windirstat” like) for each item selected in “Source” tab of my backup config.
I used the “file” tab with “folder” option ticked and sorted by modification date. With that i can analyse if files or folders or modified and how often.
So, this is my results and items which can potentially increase my backup size, with the one i suspect the most in first :
C:\Users\mbmc\Evernote\Databases\nonobio.exb (7.2 GB, i use a lot this app and this file is modified several times per day !)
C:\Users\mbmc\AppData\Roaming\Kodi\userdata\Thumbnails\ (a lot of subfolders with more than 100 MB each; seems to change every time i start Kodi)
C:\Users\mbmc\AppData\Roaming\Kodi\userdata\Database\Addons27.db (4 MB each time i start Kodi)
C:\Users\mbmc\AppData\Roaming\Kodi\userdata\Database\Epg12.db (12MB each time i start Kodi)
C:\Users\mbmc\AppData\Roaming\Kodi\userdata\Database\Textures13.db (8 MB each time i start Kodi)
C:\Users\mbmc\AppData\Roaming\MediaMonkey\MM.DB (47 Mo) : an app in permanent use. The file isn’t very big but seems to change each time i listen to a song.
After reflexion, i think it could be a good solution to separate these backups which i don’t need a “keep all” retention, from my personal data i would like to keep “keep all” retention.
If im’ right : i can’t set different retention settings for different items in the same backup job ?
If yes, the solution is to create another backup job and so have 2 jobs, for instance :
First for my personal important data with “Keep all retention”
Second for my programdata files and databases with “Keep… for instance… 6 months”
Is it a good way ?
If yes (again), can i shedule these 2 jobs at the same time ? In others terms : will Duplicati be smart and manage 2 backups at the same time without risk of conflict or too high ressources taken ?
For now, i added some “Filters” : “Exclude folder” to my actual backup job. Does it produce the same result than unticking items in source list ? I mean : will these excluded items be deleted after a purge command ?
By the way, i tried to start a “purge” command line from web gui. I think make a mistake because it finished instantly with this message : "You cannot combine filters and paths on the commandline
Return code: 200"
Thanks, thanks, and thanks again