blktrace(8) on Linux
The text 8d6eca8752de, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
generate traces of the i/o traffic on block devices
Flags it lists
-
--dev -
--input-devs -
--kill -
--relay -
-I -
-d -
-k -
-r