I have two LMS 3.0 systems in a master/slave configuration. Last week, the slave's RME device count dropped from over 4000 to just 82 devices. The slave's DCR count still lists all 4000+ devices.
I'm trying to understand how the sync between the master/slave works. From what I read, I need to update the DCR of the master. I've configured this system to update RME automatically. So, RME should be updated shortly aftering adding the device to the DCR. Then in the evening, the slave sync's it's DCR list to the masters. Then I assume it would update it's RME inventory?
According to TAC - "When you have a master/slave model applied to Ciscoworks, it will synchronize only the DCR, meaning only Common Services. From there, then you can add devices manually or delete them, from the Master, and that should update the slave, but it will only update the DCR database of the slave. This will help you manage the same devices on both servers."
If auto-sync is enabled in RME, then any device added to the master's DCR should shortly be automatically managed by the slave's RME. This assumes all daemons are running correctly, and the CSTM messages are being transmitted correctly.
Given that you already have an SR open with TAC, I'd rather you work that angle then have me try to offer competing advice.