I don't think mice or voles have eaten mine, and I have a LOT of mice and voles near them.
But I do protect them against the rabbits which I know eat them, by putting chicken wire over them in the winter. They don't get eaten in the spring, summer and fall when there are better things to eat.
If you see plain green large sempervivum at gardens centers, it's almost always the common one.
Check out the Canadian site Drought Smart Plants for more information:
http://www.drought-smart-plant...