Allow 'norandommap' with verify

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index f256f24fde3a28cd20e7a25786ec6481f766b305..4ff2d92936be3be076c3a3999e8d3f13719cbfbc 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -532,9 +532,9 @@ norandommap Normally fio will cover every block of the file when doing
                new random offset without looking at past io history. This
                means that some blocks may not be read or written, and that
                some blocks may be read/written more than once. This option
-               is mutually exclusive with verify= for that reason, since
-               fio doesn't track potential block rewrites which may alter
-               the calculated checksum for that block.
+               is mutually exclusive with verify= if and only if multiple
+               blocksizes (via bsrange=) are used, since fio only tracks
+               complete rewrites of blocks.
 
 softrandommap  See norandommap. If fio runs with the random block map enabled
                and it fails to allocate the map, if this option is set it