.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
.\" Please send any bug reports, improvements, comments, patches,
.\" etc. to Steve Cheng <steve@ggi-project.org>.
-.TH "NBD-SERVER" "5" "03 January 2009" "" ""
+.TH "NBD-SERVER" "5" "18 August 2009" "" ""
.SH NAME
/etc/nbd-server/config \- configuration file for nbd-server
\fBexportname\fR
Required; string.
-The name of the file that will be exported. This must be a
-fully-qualified path and filename; relative paths are not
-allowed.
+The name of the file (or block device) that will be
+exported. This must be a fully-qualified path and filename;
+relative paths are not allowed.
Note that \fBnbd-server\fR will only try to
find and open the exported file when a client actually
then \fBnbd-server\fR will exit with an error
message.
.TP
+\fBsync\fR
+Optional; boolean.
+
+When this option is enabled,
+\fBnbd-server\fR will call an fsync() after every
+write to the backend storage. Calling fsync() increases
+reliability in case of an unclean shutdown of nbd-server; but,
+depending on the file system used on the nbd-server side, may
+degrade performance. The use of this option isn't always
+necessary; e.g., on ext3 filesystems, it is recommended that
+it is \fBnot\fR enabled, since it seriously
+reduces performance on ext3 filesystems while not
+importantly impacting reliability.
+.TP
\fBsparse_cow\fR
Optional; boolean.