Doublewrite

show variables like '%double%'; +-------------------------------+-------+ | Variable_name | Value | +-------------------------------+-------+ | innodb_doublewrite | ON | | innodb_doublewrite_batch_size | 0 | | innodb_doublewrite_dir | | | innodb_doublewrite_files | 2 | | innodb_doublewrite_pages | 4 | +-------------------------------+-------

show status like '%lwr%'; +----------------------------+---------+ | Variable_name | Value | +----------------------------+---------+ | Innodb_dblwr_pages_written | 6339188 | | Innodb_dblwr_writes | 1991962 | +----------------------------+---------+