Migrate MnT database alone

[manvik]

I have primary, secondary node. Now added an MnT node to the deployment. How can move all the MnT data (basically all logs) alone from primary node to MnT node.

[PradeepSingh · Accepted solution]

You can change role to Primary for Monitoring on the new MnT node.

[Damien Miller · Accepted solution]

By default ISE stores 30 days of RADIUS and TACACS logs, so unless you've changed that, you could make the choice to do nothing and just let time fix it. 

The other option I would use would be from the CLI. From the MNT node that has the RADIUS/TACACS logs, you can run the command.
backup <backup_name> repository <My_FTP_Repo>  ise-operational encryption-key plain <backup-pass>

Then on the new MNT node you want to restore the logs to run the restore command. 
restore <backup_name> repository <My_FTP_Repo> encryption-key plain <backup-pass>

[manvik]

thank you guys

issue is current ISE is out of disk storage. Backup from GUI is failing since there's no disk space.

Even if the backup is taken, can only MnT data alone restored to the new node.

[Marcelo Morais]

Hi @manvik ,

 you said that "ISE is Out of Disk Storage" ... you can try the following to cleanup some files:

ise/admin# application upgrade cleanup

 you said that "can only MnT data alone restored to the new node" ... when you add the New MnT (a New Node), all the Configuration Data is replicate (sync) from PAN to the New MnT and the Operational Data could be restore from MnT to the New MnT (as described by @Damien Miller ).

Hope this helps !!!

[manvik]

application upgrade cleanup cleans the upgrade leftovers i assume. It does not deletes the previous logs/reports.

When I add a  third node to primary/secondary setup. Which one would be the primary/secondary after adding third node?

Third node is only for monitoring.

[hslai]

During registration and afterwards, you have the option to designate the 3rd node as either the primary or the secondary MnT.