Thanks for the response @rustybird .
Yes, I’m already using that as a workaround, as discussed in a quoted topic
It’s not that I insist on this, but the problem is that attaching this second block device isn’t possible to any Windows qube without --persistent parameter, while it is possible to attach it without this parameter to any Linux based qube.
So that is why I’m trying to find a way to attach this HDD to a win dispxxx qube anyhow.