qemu, it may be non-zero only for an online domain.
=item B<blockcopy> I<domain> I<path> I<dest> [I<bandwidth>] [I<--shallow>]
-[I<--reuse-external>] [I<--raw>] [I<--wait> [I<--verbose]
+[I<--reuse-external>] [I<--raw>] [I<--wait> [I<--verbose>]
[{I<--pivot> | I<--finish>}] [I<--timeout> B<seconds>] [I<--async>]]
Copy a disk backing image chain to I<dest>. By default, this command
I<bandwidth> specifies copying bandwidth limit in MiB/s.
=item B<blockpull> I<domain> I<path> [I<bandwidth>] [I<base>]
-[I<--wait> [I<--verbose>] [I<--timeout> B<seconds>] [I<--async]]
+[I<--wait> [I<--verbose>] [I<--timeout> B<seconds>] [I<--async>]]
Populate a disk from its backing image chain. By default, this command
flattens the entire chain; but if I<base> is specified, containing the
than one argument is provided for I<command>, they are concatenated with a
space in between before passing the single command to the monitor.
-=back
-
=item B<qemu-agent-command> I<domain> [I<--timeout> I<seconds> | I<--async> | I<--block>] I<command>...
Send an arbitrary guest agent command I<command> to domain I<domain> through