That's an interesting case you have here.
Converter deploys a 'sysinfo' utility at the source machine to collect its data. sysinfo produces an xml which is then parsed by converter. In your case there are warnings intermingled with the data which break the parser; something of the kind:
Warning: The disk CHS geometry (4401,255,63) reported by the operating system does not match the geometry stored on the disk label (36828,30,64).
This is probably due to the fact those disks have 'sun' label (something I haven't seen before).
These warning messages are most probably generated by libparted, as sysinfo does not print such messages, it only uses libparted's API.
An eventual workaround would be to replace sysinfo by some app that just outputs the right xml (taken from the log and stripped from the parasitic warnings). If you go this way, take into account there are 2 sysinfo-s - for 32 bit and for 64 bit sources.
Regards
Plamen