sg_test_rwbuf(8) on Linux
The text 2038b48c0de5, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) 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