thanks for your prompt reply. I didn't wanted to make you additional work with my feedback. I think most of my irreguarities come from my "special" setup (Bonding etc.).
First and foremost I am happy with the Plugin and just wanted to let you know.
For your questions:
1. SSH pully network.service on my system, but that doesn't initialize the bond, so I got no IP at this stage. Only networking initializes the interface configured in /etc/network/interfaces
2. Yes, my docker is on an encrypted root.
3. I do have 3 Disks with an RAID-5 on top. Each Disk is 8TB in size. At this time about 50% Space is used.
4. I do not use an disk-key. I am prompted for the passphrase one time for the whole RAID.