Move version logging

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 1915bd696feecf56f1cbbcda46ce3569e98980e0..d4e70923facf5b0b3ed322a551bee9a445fc3046 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -375,10 +375,15 @@ filesize=int      Individual file sizes. May be a range, in which case fio
                and limited to 'size' in total (if that is given). If not
                given, each created file is the same size.
 
                and limited to 'size' in total (if that is given). If not
                given, each created file is the same size.
 

-fill_device=bool Sets size to something really large and waits for ENOSPC (no
+fill_device=bool
+fill_fs=bool   Sets size to something really large and waits for ENOSPC (no

                space left on device) as the terminating condition. Only makes
                 sense with sequential write. For a read workload, the mount
                space left on device) as the terminating condition. Only makes
                 sense with sequential write. For a read workload, the mount

-               point will be filled first then IO started on the result.
+               point will be filled first then IO started on the result. This
+               option doesn't make sense if operating on a raw device node,
+               since the size of that is already known by the file system.
+               Additionally, writing beyond end-of-device will not return
+               ENOSPC there.

 
 blocksize=int
 bs=int         The block size used for the io units. Defaults to 4k. Values
 
 blocksize=int
 bs=int         The block size used for the io units. Defaults to 4k. Values


@@ -926,6 +931,11 @@ 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,