def METHOD_NAME(self):
    driveopts = ['driver=quorum', 'vote-threshold=2']
    driveopts.append('read-pattern=%s' % self.read_pattern)
    for i in range(len(imgs)):
        iotests.qemu_img('create', '-f', iotests.imgfmt, imgs[i], '1M')
        self.create_blkdebug_file(img_conf[i], i + offset)
        driveopts.append('children.%d.driver=%s' % (i, iotests.imgfmt))
        driveopts.append('children.%d.file.driver=blkdebug' % i)
        driveopts.append('children.%d.file.config=%s' % (i, img_conf[i]))
        driveopts.append('children.%d.file.image.filename=%s' % (i, imgs[i]))
        driveopts.append('children.%d.node-name=img%d' % (i, i))
    self.vm = iotests.VM()
    self.vm.add_drive(None, opts = ','.join(driveopts))
    self.vm.launch()