How do you know you're "being ignored"? Just because it shows a value of 128 doesn't mean your "reset" isn't working - maybe 128 is the value that Oracle is coming up with? Try this: select isdefault from v$parameter where name = 'db_file_multiblock_read_count'; If it's not the default, you might want to try this: alter system reset db_file_multiblock_read_count scope=spfile sid = '*'; Then bounce your instance and check again. Regards, Brandon -- //www.freelists.org/webpage/oracle-l