fio.1: add rbd options to man page

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 6e44a82a724b7ad0a559c22eec694e8afa7d2a20
git@github.com:dalgaaf/fio.git)
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/fio.1 b/fio.1
index ec103776afc274d4467e322904a9ad0f23f11f89..1df1cd1a2004ce2bc3fec5cce2a7f11424582592 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -557,6 +557,11 @@ transfer as fio ioengine
 .B e4defrag
 IO engine that does regular EXT4_IOC_MOVE_EXT ioctls to simulate defragment activity
 request to DDIR_WRITE event
+.TP
+.B rbd
+IO engine supporting direct access to Ceph Rados Block Devices (RBD) via librbd 
+without the need to use the kernel rbd driver. This ioengine defines engine specific 
+options.
 .RE
 .P
 .RE
@@ -1394,6 +1399,15 @@ Preallocate donor's file on init
 .BI 1:
 allocate space immediately inside defragment event, and free right after event
 .RE
+.TP
+.BI (rbd)rbdname \fR=\fPstr
+Specifies the name of the RBD.
+.TP
+.BI (rbd)pool \fR=\fPstr
+Specifies the name of the Ceph pool containing the RBD.
+.TP
+.BI (rbd)clientname \fR=\fPstr
+Specifies the username (without the 'client.' prefix) used to access the Ceph cluster.
 .SH OUTPUT
 While running, \fBfio\fR will display the status of the created jobs.  For
 example: