I would like to know in better detail how soft fencing works in 4.3.

In particular, with "soft fencing" we "only" mean vdsmd restart attempt, correct?

Who is responsible for issuing the command? Manager or host itself?

Because in case of Manager, if the host has already lost connection, how could the manager be able to do it?

Thanks in advance for clarifications and eventually documentation pointers

Gianluca