I got this issue when monitoring the Exchange DAG mountpoint, there are 2 Exchange server with the mailbox role and we are using the SNMP to monitor the services and local drive. Then we added the DAG IP to monitor the mountpoints using WMI where we monitor the DB and log folders. And today, one of the mailbox got dismounted as the log file were full and we found that the Solarwinds was not monitoring the DAG correctly as the mountpoint disk serial number was changed. We do not know why it was changed as everything was ok last month but today, we found that there are no data in the disk monitoring since last month and found that the DAG mountpoint disk serial number was changed. Anyone knew what is the best way to monitor mountpoint for DAG?
