[dm-devel] [PATCH 7/7] Hold all write bios when errors are handled

[malahal at us.ibm.com]

Mikulas Patocka [mpatocka at redhat.com] wrote:
> > > If you ask the admin always if primary leg failed and wait for his
> > > action, you lose fault-tolerance --- the computer would wait until
> > > the admin does an action.
> > 
> > Well, we are talking one time admin help at reboot [actually activation
> > time] if and only if the "state of the mirror" changed during reboot!
> > This is not applicable at run time. Most of the time, dmeventd will have
> > a chance to change the mirror to linear anyway.
> 
> You can ask the admin about failed on reboot --- but why do it if it can 
> continue on its own? (unless both legs fail)

Agreed, it is better to stop on either failure.