get_persistence_record

I don't think you are doing anything wrong. Are you sure that there are values being returned back? I'd try turning on the SOAP debugging

use SOAP::Lite + trace => qw(method debug);

It will print out all the SOAP Requests and Responses. If your response looks something like this:

xmlns:E="http://schemas.xmlsoap.org/soap/envelope/"

xmlns:A="http://schemas.xmlsoap.org/soap/encoding/"

xmlns:s="http://www.w3.org/2001/XMLSchema-instance"

xmlns:y="http://www.w3.org/2001/XMLSchema"

xmlns:iControl="urn:iControl"

E:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">

xmlns:m="urn:iControl:LocalLB/Pool">

s:type="A:Array"

A:arrayType="iControl:LocalLB.PersistenceRecord[][0]">

then you have zero persistence records.

-Joe