- Install 9i on the current and new servers, upgrade to 9i on the current server and then move to the new server.
- Install 9i on the new server and create a new database on the new server. Then, export the whole database on the current server, move the dmp file to the new server, and import it into the new database created on the new server. This involves the smallest number of steps, but may take a long time as imports are usually not as fast as upgrading in place. When you combine the upgrade with a move to a new server, it may take just as long as the export/import method, though. You'd have to try both with your servers to be certain. Both methods will get you there equally well.
One additional benefit to export/import is that you have the option of using some new tablespace features available in 9i like locally-managed tablespaces, ASSM, and automatic extent management.
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