Memory Sizing

[Stuart Graham]

All, I have a question re Sizing of various memory areas in the SGA.   On a test box (8.1.6.0.0 NT4), I have a database with the following init.ora parameters...   db_block_buffers = 500   shared_pool_size = 4951040   large_pool_size = 614400 java_pool_size = 0   log_buffer = 32768   db_block_size = 4096   However, querying v$sga and v$sgastat gives some different results...     SQL> SELECT *   2    FROM v$sga;   NAME                      VALUE -------------------- ---------- Fixed Size                70924 Variable Size           9756672 Database Buffers        2048000 Redo Buffers              77824   SQL> SELECT pool,   2         SUM(bytes)   3    FROM v$sgastat   4   GROUP BY pool;   POOL        SUM(BYTES) ----------- ---------- java pool        32768 large pool      614400 shared pool    9091800                2185484   As you can see, only my database buffers seem to match what was specified in the init.ora The redo buffers are equal to (log_buffer*2)+ 1 block. The shared pool bears no resemblance to shared_pool_size!!   Thanks in advance...