I have waded through a huge number of discussions here, but have not found the answer.
Currently, I am not using snapshots on either of my laptops, and I am not running Duplicati as sysadmin. However, I am interested in setting up Duplicati on both machines in such a way that I could use the Duplicati web UI from both machines on both machines. For that, I would have to run Duplicati on them both as sysadmin, and if I do that, then later on, I might get to a point of giving --snapshot-policy a try.
So my question is for background only, I am not asking for immediate, urgent support.
On my Windows laptop, I have two internal disks. By default, Win10 has enabled VSS on the system disk (SDD), but not on the other disk (HDD). My “Home” backup job includes folders from both disks (and sends the backups to an external disk). If I were to enable --snapshot-policy for this job, I should of course enable VSS on both disks. But the question is would I have to split the backup job into two separate jobs for --snapshot-policy to work properly?
On the other laptop, I have an encrypted Ubuntu installation, which uses LVM volumes by default. In order to enable --snapshot-policy, I would first have to make room for the LVM snapshots that I want Duplicati to create (btw. it would be a courtesy to remind the user about this too in Duplicati manual). On Ubuntu, my “Home” backup set includes files from two different LVM volumes, which both reside on the only internal disk. So the question raises again: does --snapshot-policy work with a backup job that includes files from multiple (partitions or) LVM volumes? How does Duplicati decide where to place the LVM snapshots? Can I help Duplicati in making that decision?