sg_test_rwbuf(8) on Linux
The text 1e34811d92fb, as Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
test a SCSI host adapter by issuing dummy writes and reads
Flags it lists
-
--addrd -
--addwr -
--help -
--quick -
--size -
--times -
--verbose -
--version -
-V -
-h -
-q -
-r -
-s -
-t -
-v -
-w