sg: add read/write FUA options

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index acb9e97fc35bf6ca790d45bb93b7be0260509a8f..dbbbfaa1d839e2d0bd73d91ceb83956c69f8e2c2 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1747,6 +1747,7 @@ I/O engine
                        :manpage:`read(2)` and :manpage:`write(2)` for asynchronous
                        I/O. Requires :option:`filename` option to specify either block or
                        character devices.
+                       The sg engine includes engine specific options.
 
                **null**
                        Doesn't transfer any data, just pretends to.  This is mainly used to
@@ -2068,6 +2069,17 @@ with the caveat that when used on the command line, they must come after the
        multiple paths exist between the client and the server or in certain loopback
        configurations.
 
+.. option:: readfua=bool : [sg]
+
+       With readfua option set to 1, read operations include
+       the force unit access (fua) flag. Default is 0.
+
+.. option:: writefua=bool : [sg]
+
+       With writefua option set to 1, write operations include
+       the force unit access (fua) flag. Default is 0.
+
+
 I/O depth
 ~~~~~~~~~