Could you please provide more information? At least links?

What did you try so far?

> OpenNebula perl module

do you mean Net::OpenNebula ?

PS: after looking at your older posts, I'd suggest you try reading How do I post a question effectively?

Looking at OpenNebula.pm line 128, we see that

my $data = $self->_rpc("one.vm.info", [ int => $id ]);
[download]

so clone that subroutine, and make your own script that fetches the one.vmpool.info instead. Then, with "use Data::Dumper;" try to dump $data and see if there is useful information.

EDIT:

Net::OpenNebula::RPCClient is what you need (untested, but at least it runs without me having OpenNebula):

use Data::Dumper;
use Net::OpenNebula::RPCClient;

my $one = Net::OpenNebula::RPCClient->new(
    url      => "http://server:2633/RPC2",
    user     => "oneadmin",
    password => "onepass",
 );
 
my $ret = $one->_rpc("one.vmpool.info");

die Dumper $ret;
#die Dumper $one;
[download]

OLD, probably BAD STUFF:

 use Data::Dumper;
 use Net::OpenNebula;
 my $one = Net::OpenNebula->new(
    url      => "http://server:2633/RPC2",
    user     => "oneadmin",
    password => "onepass",
 );
my $data = $one->_rpc("one.vmpool.info");
die Dumper \$data;
[download]

sorry for being vague... I do not know the module, nor your application.

How to use start vnc process in perl. Is there any option for generation sunstone_token using OpenNebual.pm

Kishor

"How to use start vnc process in perl."

The module offers no functionality to do this, system?