Fundamental Changes from r8.1

Current CA Directory versions are fundamentally different from r8.1. Before you upgrade CA Directory from r8.1, you should be aware of the following:

In r8.1, CA Directory used an Ingres database to store data. CA Directory now uses a memory-mapped file ("datastore") to provide persistent storage.
Apart from increasing performance, consider the following installation consequences:
- Some of the DXtools commands from the previous release no longer exist and others have changed, so you may need to modify script files.
- You can no longer use cache-only DSAs. The installation process will not continue if it detects a cache-only DSA.
In r8.1, one database can be used by many DSAs. However, now each datastore has only one DSA. A DSA can multi-thread requests to its datastore.
If you have more than one DSA using a database, you need to remove all these DSAs except one before upgrading. If there is more than one DSA associated with one database, the installer produces an error message and exits.

Note: For more information about these changes, see the Release Summary.