Why does the default buffer cache show a minimum value of 164M? No value was specified fro db_cache in the init.ora SQL> @sga_components current min COMPONENT size M size M LAST_OPER_TYP GRANULE_SIZE_M ------------------------- ---------- ---------- ------------- -------------- shared pool 316 304 GROW 4 large pool 4 0 GROW 4 java pool 12 4 GROW 4 streams pool 48 48 STATIC 4 DEFAULT buffer cache 168 164 SHRINK 4 KEEP buffer cache 0 0 STATIC 4 RECYCLE buffer cache 0 0 STATIC 4 DEFAULT 2K buffer cache 0 0 STATIC 4 DEFAULT 4K buffer cache 0 0 STATIC 4 DEFAULT 8K buffer cache 0 0 STATIC 4 DEFAULT 16K buffer cache 0 0 STATIC 4 DEFAULT 32K buffer cache 0 0 STATIC 4 ASM Buffer Cache 0 0 STATIC 4 13 rows selected. Jeffrey Beckstrom Database Administrator Greater Cleveland Regional Transit Authority 1240 W. 6th Street Cleveland, Ohio 44113