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Preparing for a Database Server or Storage-Manager Upgrade

Important:
The database server conversion software automatically re-creates the sysutils database when you upgrade to the latest version of the database server. All backup and restore information from the old database server version is lost. Backups that you make under the older version of the database server are not compatible with the newer version of the database server.
To prepare for an upgrade
  1. Use ON–Bar to perform a level-0 backup of all your data before you upgrade your database server, ISM, or change storage-manager vendors.
  2. Save these backups so that you can restore the data in case you need to revert to the old database server version.
  3. Before you upgrade, back up the administrative files.
  4. After you upgrade the database server, back up all storage spaces and logical logs.

    For more information on database server migration, see the IBM Informix: Migration Guide.

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