Ingres 9.2 Migration Guide - Actian

How You Perform an Upgrade Using Unload/ReloadShut Down Ingres and Back Up SystemYou should perform a clean shutdown of Ingres, clearing all transactions fromthe transaction log, and then back up your system.To perform a clean shutdown of Ingres1. Shut down Ingres.2. Restart Ingres.3. Shut down Ingres again.4. Check the recovery process log (iircp.log) for the message “RCP Shutdowncompleted normally.”To back up your system1. Use a command appropriate to the platform to perform the backup.2. Back up all Ingres directories, including data, checkpoint, journal, dumpareas, and the $II_SYSTEM/ingres directory containing Ingres files andexecutables.3. Back up the application directoriesNote: Watch for symbolic links and cross-mounts; make sure real data issaved and not a symbolic link.4. Include the root file system in the backup if Ingres is typically started up atboot time. Alternatively, print a copy of any Ingres boot time startup andshutdown scripts.5. Perform the backup twice to ensure that you have an extra copy of yourbackup. This step ensures maximum safety.6. Check the backup media to ensure that the backup can be read. If yourbackup medium is tape, use new tapes, and clean the tape drive beforethe backup.7. Restart Ingres.Unload the DatabaseFor each database, run the unload.ing script created by the unloaddbcommand. The database is unloaded into your unload directory.60 Migration Guide