.TH tcmu-runner 8
.SH NAME
tcmu-runner \- A daemon that handles the userspace side of the LIO TCM-User backstore
.SH DESCRIPTION
.B tcmu-runner
is a service that provides an operating environment for LIO TCM-User
handlers. These currently include handlers for Gluster glfs and the
qcow and qcow2 image formats.

.SH USAGE
While normally started automatically via D-Bus system activation,
.B tcmu-runner
can also be run as root directly, usually for debugging and
development purposes.

.SH OPTIONS
.TP
.B \-h, \-\-help
Print usage information
.TP
.B \-d, \-\-debug
Enable debug messages
.TP
.B \-V, \-\-version
Print tcmu-runner's version
.P
.SH CONFIGURING HANDLERS
TCMU-backed handlers are typically configured using normal LIO
configuration tools, such as
.BR targetcli .
Part of doing this will be entering a handler-specific configuration
string.
.SS CONFIGURING GLUSTER HANDLER (glfs)
This handler uses the Gluster glfs API to use Gluster as a backstore
for the image file.
.P
Its configuration string is:
.IP "" 4
\fIvolume\fB@\fIhostname\fB/\fIfilename\fR
.br
volume: The volume on the Gluster server
.br
hostname: The server's hostname
.br
filename: The backing file
.SS CONFIGURING QCOW HANDLER (qcow)
This handler supports qcow, qcow2, or raw image file
formats.
.P
Its configuration string is:
.IP "" 4
\fIpath\fR
.br
path: The full path to a file of a supported file format. The file
must already have been created using
.BR qemu-img .

.SH SEE ALSO
.BR qemu-img  (1),
.BR targetcli (8),
.BR targetctl (8)

.SH AUTHOR
Andy Grover <agrover@redhat.com>
.SH REPORTING BUGS
Report bugs via <target-devel@vger.kernel.org>
.br
or <https://github.com/agrover/tcmu-runner/issues>