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ORA-12427 On Startup When DB_FLASH_CACHE_SIZE Is Greater Than 2 TB (Doc ID 2526406.1)

Last updated on NOVEMBER 11, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


If db_flash_cache_size=10 G the database starts in 30 seconds.
If db_flash_cache_size=2047 G the database starts in 4 minutes.

The size of the flash cache device is 2.5 TB:

If db_flash_cache_size=2400 G the instance does NOT start. "ORA-12427: invalid input value for db_flash_cache_size parameter.


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