Hello -

I know a bit of German and would like to attempt to answer your question.

Am to understand you are looking for a procedure for backing up to a Dynamic Disk?

If so, here is a procedure I am using which may help you.

Configure a snapshot to a local volume you wish to back up.
go to Configuration -> Volume Manager -> Create Snapshot

Then, attach the disk to the system and go to
Configuration -> Volume Manager
click on the 'Rescan' button, add the disk as a Dynamic Disk (dynamic00)

In Configuration -> NAS Settings, go to Local Backup Settings (bottom of screen)
Check box 'Use local backup'; click Apply

In Maintenance -> Backup -> Backup devices
Create new virtual device; check option 'Use Devices: Dynamic Volume'

In Maintenance -> Backup -> Backup pool: Create Backup pools

In Maintenance -> Backup -> Backup devices:
Go to 'Your created virtual devices' and function: 'Create new tape'
label your tape

In Maintenance -> Backup -> Backup tasks: Create a new backup task

Click on the 'Play' button to start 'back00', then
in status task, you will see the task as 'running'

If you swap a disk, you will need to use 'back01'
After swapping, go to
Configuration -> Volume Manager -> Vol Group
click 'Rescan' to recognize the new drive

A separate backup task is required for each disk drive

...hope this helps.

-Asaph