Migrating node information to the current SUM version
SUM stores node information in a database that is specific to each version of SUM. If you have used SUM to manage a node, migrate the node database information to the current version of SUM before launching SUM.
Procedure
-  
		  From the 
			 SUM directory, launch 
			 sum_migration.bat(Windows) orsum_migration.sh(Linux).
- Follow the on-screen instructions, and then select the version you want to migrate to the version of SUM you are using.