扩容的时候报错，这个该怎么解决
failed to enlarge qemu node disk: failed to enlarge qemu node disk: overtime=false, err=cannot increase image size to: qemu-img: warning: Shrinking an image will delete all data beyond the shrunken image's end. Before performing such an operation, make sure there is no important data there. qemu-img: Use the --shrink option to perform a shrink operation.