[PATCH v2 2/2] docs: formatdomain: Document the temporary file for transient disks

Mention that hypervisors may need a temporary file and document the qemu template for creating them. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- docs/formatdomain.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index e6f09a728f..3253a28e5a 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -3479,6 +3479,13 @@ paravirtualized driver is specified via the ``disk`` element. ``shareBacking`` attribute should be set to ``yes``. Note that hypervisor drivers may need to hotplug such disk and thus it works only with configurations supporting hotplug. :since:`Since 7.4.0` + + Hypervisors may need to store a temporary file containing the data written + by the domain while running, which may be stored in the same location + as the original source of the disk (The ``qemu`` driver stores the temporary + files as ``$(origsource).TRANSIENT-$(vmname)``, where ``$(origsource)`` is + the full original path of the disk source and ``$(vmname)`` is the name of the + domain). ``serial`` If present, this specify serial number of virtual hard drive. For example, it may look like ``<serial>WD-WMAP9A966149</serial>``. Not supported for -- 2.47.0