We run MX400's as our concentrators, we recently (we think recently anyway) lost a power supply in one of them. That's no problem, that's why we have 2 power supplies, and HA 400's. The problem is that we got ZERO notification that this had happened. No Emails, No Dashboard alerts. The only reason we knew is because one of our staff went to our data center (visited maybe 1-2 per month) and noticed the MX400 was beeping.
This is a pretty serious concern for us, luckily we have the redundancy built into our network design, but how can you have such a large device without any notifications as to the status of its power supplies. Before anyone says it. The MX250, yes has power supply status, the MX400's however don't seem to. An email at least would be nice....