That's a great question, I haven't read a ton on it, but my general understanding is storage and security. How many does that include? Obviously, they aren't going into strategic locations, is there another way they verify conditions, etc?
Generally speaking, not just in terms of military capability, you can judge just about anything (a company, government, etc) by their maintenance standards and practices. I can't imagine that Russia's was good, but to the point of being derelict to cause safety concerns? We certainly haven't heard anything like that prior, nor now, and I have to imagine that would have leaked by now.
I think it's a pipe dream to think that they don't at least have a percentage of working weapons, mind you that has nothing to do with the delivery method (which we've seen that part of theirs is shit, but capable to a degree). I get the impulse based on their overall performance to think of them as paper tiger's in this regard, but these two things are likely to be vastly disconnected.