With SQL Database Mirroring setup in a Skype for Business Server infrastructure, the state of all databases should be uniform and not with “partial” cross over. That is to say, the status for both StateOnPrimary and StateOnMirror should either all be in the Principal or Mirror state when checked using Get-CsDatabaseMirrorState. If that turns out … Continue reading #skype4b: SQL Mirror Database Failover Suspended (not synchronized state)