db_block_buffers = 0
Follow the Oracle Multiple Buffer Pools Feature [ID 135223.1]
But when find the total number of buffers in the instance by use :
SELECT value "total buffers"
FROM v$parameter
WHERE name = 'db_block_buffers';
It's result is 0. I know this value determine number of database blocks cached in memory.
SQL> show sga;
Total System Global Area 8388608000 bytes
Fixed Size 2034128 bytes
Variable Size 352323120 bytes
Database Buffers 8019509248 bytes
Redo Buffers 14741504 bytes
SQL> show parameter pga_
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
pga_aggregate_target big integer 2800M
SQL> show parameter db_cache;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_cache_advice string ON