8.3 Database Smart Flash Cache

If the data that you want to cache doesn't fit in memory, you can expand the capacity of True Cache by adding flash devices. You do this by configuring Database Smart Flash Cache.

To enable Database Smart Flash Cache, see Configuring Database Smart Flash Cache.

Note:

To ensure that flash cache encryption is activated on True Cache, the master key must be set and active on the primary database instance, and the TDE wallet must be copied to True Cache. Otherwise, no buffer is encrypted.

The TABLESPACE_ENCRYPTION initialization parameter behaves as follows on True Cache:

• When TABLESPACE_ENCRYPTION is set to AUTO_ENABLE, all buffers are encrypted in flash cache on True Cache.
• When TABLESPACE_ENCRYPTION is set to MANUAL_ENABLE, the buffer is encrypted in flash cache on True Cache if the buffer was originally encrypted when fetching from the primary database.
• When TABLESPACE_ENCRYPTION is set to DECRYPT_ONLY, all buffers are not encrypted in flash cache on True Cache.