Comment # 13 on bug 1130294 from Michal Suchanek

This is not really a problem.

With all weird copy protections it is not always possible to know what is real
medium size.

The drive should handle access to sectors which do not exist. It is normal that
it makes disturbing noises wile seeking.

You have shown that it is os-prober that probes the drive causing it to spin
up. It does not make much sense for os-prober to probe optical media but that
can be said about pretty much everything os-prober does. It is normally not
required so you can just remove it.

rpm -e os-prober
zypper al os-prober