Multiple jobs and verify will not fail if do_verify=0

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index e54382b19b5e35beaa907b1cb263081d5c8bab44..68e17e9f4743b6738fe10c1e329be9783f8af746 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -926,6 +926,11 @@ verify_fatal=bool  Normally fio will keep checking the entire contents
                option is set, fio will exit the job on the first observed
                failure.
 
                option is set, fio will exit the job on the first observed
                failure.
 

+verify_dump=bool       If set, dump the contents of both the original data
+               block and the data block we read off disk to files. This
+               allows later analysis to inspect just what kind of data
+               corruption occurred. On by default.
+

 verify_async=int       Fio will normally verify IO inline from the submitting
                thread. This option takes an integer describing how many
                async offload threads to create for IO verification instead,
 verify_async=int       Fio will normally verify IO inline from the submitting
                thread. This option takes an integer describing how many
                async offload threads to create for IO verification instead,


@@ -993,7 +998,8 @@ zoneskip=int        Skip the specified number of bytes when zonesize data has
                io on zones of a file.
 
 write_iolog=str        Write the issued io patterns to the specified file. See
                io on zones of a file.
 
 write_iolog=str        Write the issued io patterns to the specified file. See

-               read_iolog.
+               read_iolog.  Specify a separate file for each job, otherwise
+               the iologs will be interspersed and the file may be corrupt.

 
 read_iolog=str Open an iolog with the specified file name and replay the
                io patterns it contains. This can be used to store a
 
 read_iolog=str Open an iolog with the specified file name and replay the
                io patterns it contains. This can be used to store a