Can you submit a support ticket then enable the Remote support service from the Extended tools in the Console, that way we can remotely fix this or see what is happening.
similar issue here, didn't had any kind of power outage and such, box was running fine till now and the iscsi services still are, but the web access is almost inaccessible, i managed once to login to the active node and saw some alerts about high node load - but the passive is having the same issue