You can't accidentally reinitialize disk space with Informix 11.70
With IBM Informix Version 11.70, you can't accidentally initialize disk space for an existing server by running the oninit -i command. Initializing disk space destroys all of the database data that the server manages. If you do want to initialize disk space for an existing server, you can set the FULL_DISK_INIT configuration parameter to allow the oninit -i command to succeed. For more information, see FULL_DISK_INIT configuration parameter in the Version 11.70 Information Center.