20.3.2 Different-system restore
You can also use the backup and restore commands to transfer data from one NNMi management server to another. The intended uses of different-system restoration include recovering from a system failure and transferring NNMi to a different system during an operating system upgrade.
- Tip
You must note the following if you are using the global network management function: Because the NNMi UUID is copied to the target system during the database restore, both the source system and the target system will appear to be running the same instance of NNMi. To resolve this anomaly, you must uninstall NNMi from the source system.
- Note
To create multiple functional NNMi management servers with similar configurations, such as while deploying global network management, use the nnmconfigexport.ovpl and nnmconfigimport.ovpl commands.
For a different-system restore, the following items must be identical on both systems:
NNMi version (including any patches)
Operating system type
Character set (language)
The following items can differ between the two systems:
Host name
Domain
In a different-system restore, the nnmrestore.ovpl command does not copy license information to the new system. You must obtain and apply a new license for the new NNMi management server. For details, see the license manual.