Oracle Solution for Error ora-00383

ORA-00383: DEFAULT cache for blocksize string cannot be reduced to zero

What triggered the Error:

User attempted to reduce db_cache_size to zero, or attempted to to reduce db_K_cache_size to zero while there were still online tablespaces with blocksize K. Note that since the SYSTEM tablespace cannot be taken offline, it is always illegal to set db_cache_size to zero.

What should we do to fix it:

Offline any tablespaces with the corresponding blocksize and then perform the operation again.

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