Back up Informix® after migrating to the new version
Use a backup and restore tool (ON-Bar or ontape) to make a level-0 backup of the new database server. Do not overwrite the tapes that contain the final backup of the old database server.
For more information, see the IBM®
Informix Backup and Restore Guide.
Important: Do not restore the backed up logical-log
files from your old database server for your new database server.