When a Meridian vault is stored in Oracle, two levels of caching are in effect instead of just one as when Hypertrieve is used; the Meridian object cache and the Oracle cache. For information on configuring the Meridian cache size, see Configure the MaximumCacheSize Setting and Configure the RelativeCacheSize Setting.
Similarly, we recommend 15 percent of the database size as a rule of thumb for the size of the Oracle cache. For information on configuring the Oracle cache size, see the Oracle documentation. When physical memory is scarce, it is best to give priority to the Meridian object cache . This will ensure that queries remain responsive, although the update throughput will be diminished if the Oracle cache is smaller than recommended.