How to fix the Oracle error ORA-07305: ksmcsg: illegal database buffer size.?

In this post, you’ll learn more about the Oracle ErrorORA-07305: ksmcsg: illegal database buffer size. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-07305: ksmcsg: illegal database buffer size.

Reason for the Error ORA-07305: ksmcsg: illegal database buffer size.

The database buffer size must be a multiple of the extended cache mapping size for indirect data buffers to be used.

How to fix the Error ORA-07305: ksmcsg: illegal database buffer size. ?

You can fix this error in Oracle by following the below steps

Verify that the db_block_size parameter is correct in INIT.ORA, or disable the use_indirect_data_buffers parameter.