20.2.1 Backup type
The NNMi backup command supports two types of backups:
Online backups occur while NNMi is running. NNMi ensures that the database tables are synchronized in the backed up data. Operators can be actively using the NNMi console and other processes can be interacting with the NNMi database during an online backup. With an online backup, you can back up all NNMi data or only some of the data according to function, as described in 20.2.2 Backup scope. For the NNMi database, the nmsdbmgr service must be running.
Offline backups occur while NNMi is completely stopped. With an offline backup, the backup scope applies to the file system files only. An offline backup always includes the complete NNMi database regardless of the backup scope. For the NNMi database, the backup copies the Postgres database files.