Allow verify w/norandommap and bsrange

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 8da5527a3edb6cbfd408f497260651d99c633be0..0f7909daef68c32e0e4cee1546d4b93a479a3e0a 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -919,10 +919,10 @@ norandommap       Normally fio will cover every block of the file when doing
                random IO. If this option is given, fio will just get a
                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= if and only if multiple
-               blocksizes (via bsrange=) are used, since fio only tracks
-               complete rewrites of blocks.
+               some blocks may be read/written more than once. If this option
+               is used with verify= and multiple blocksizes (via bsrange=),
+               only intact blocks are verified, i.e., partially-overwritten
+               blocks are ignored.
 
 softrandommap=bool See norandommap. If fio runs with the random block map
                enabled and it fails to allocate the map, if this option is