When a Full Server Backup (FSB) backup_import is performed on a TIBCO Data Virtualization server with -verbose and -overwrite flags enabled, we see the below message show up as part of the output on the console: 
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User does not have sufficient privileges to delete resource '/services/databases/users'.
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Example for reference: 
C:\Program Files\TIBCO\TDV Server 8.6_9460\bin> backup_import.bat -overwrite -server localhost -port 9460 -user admin -password password -encrypt -encryptionPassword 123456 -pkgfile FSB_9460.car -verbose



 

• The message means that the existing users will be retained (i.e. they will not be over-written by the import process). If there are any new users as part of the import, they will be added to the existing list. 
• This message would not impact any import process and can be ignored.