man page: Fix read_beyond_wp description

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 2966d9d5f0e35acb45e4f1b099bd6a7c0bd381e1..d7421eee6267b1877e557b0a6afc7979e481b5b0 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -778,10 +778,10 @@ Zoned block devices are block devices that consist of multiple zones. Each
 zone has a type, e.g. conventional or sequential. A conventional zone can be
 written at any offset that is a multiple of the block size. Sequential zones
 must be written sequentially. The position at which a write must occur is
-called the write pointer. A zoned block device can be either drive
-managed, host managed or host aware. For host managed devices the host must
-ensure that writes happen sequentially. Fio recognizes host managed devices
-and serializes writes to sequential zones for these devices.
+called the write pointer. A zoned block device can be either host managed or
+host aware. For host managed devices the host must ensure that writes happen
+sequentially. Fio recognizes host managed devices and serializes writes to
+sequential zones for these devices.
 
 If a read occurs in a sequential zone beyond the write pointer then the zoned
 block device will complete the read without reading any data from the storage
@@ -1015,7 +1015,9 @@ If this is provided, then the real offset becomes `\fBoffset\fR + \fBoffset_incr
 is incremented for each sub\-job (i.e. when \fBnumjobs\fR option is
 specified). This option is useful if there are several jobs which are
 intended to operate on a file in parallel disjoint segments, with even
-spacing between the starting points.
+spacing between the starting points. Percentages can be used for this option.
+If a percentage is given, the generated offset will be aligned to the minimum
+\fBblocksize\fR or to the value of \fBoffset_align\fR if provided.
 .TP
 .BI number_ios \fR=\fPint
 Fio will normally perform I/Os until it has exhausted the size of the region
@@ -1756,6 +1758,9 @@ FIO will then decide when to commit these requests.
 .TP
 .B libiscsi
 Read and write iscsi lun with libiscsi.
+.TP
+.B nbd
+Synchronous read and write a Network Block Device (NBD).
 .SS "I/O engine specific parameters"
 In addition, there are some parameters which are only valid when a specific
 \fBioengine\fR is in use. These are used identically to normal parameters,
@@ -2019,6 +2024,22 @@ blocksize=8k will write 16 sectors with each command. fio will still
 generate 8k of data for each command butonly the first 512 bytes will
 be used and transferred to the device. The writefua option is ignored
 with this selection.
+.RE
+.RE
+.TP
+.BI (nbd)uri \fR=\fPstr
+Specify the NBD URI of the server to test.
+The string is a standard NBD URI (see
+\fIhttps://github.com/NetworkBlockDevice/nbd/tree/master/doc\fR).
+Example URIs:
+.RS
+.RS
+.TP
+\fInbd://localhost:10809\fR
+.TP
+\fInbd+unix:///?socket=/tmp/socket\fR
+.TP
+\fInbds://tlshost/exportname\fR
 
 .SS "I/O depth"
 .TP