Document the 'compression_type' option for qcow2, and mention that streamOptimized vmdk supports compression, too. Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20230901102430.23856-1-kwolf@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>