OnBar/Legato question

Hi all.. I am planning to create a contingency machine to which I can load any of my databases for ad-hoc data analysis. This machine has all of its disks named exactly like all of my production machines. I currently use OnBar/Legato to back up all of my servers. I was planning on taking my legato save set(s) from production and copying them over to the contingency machine from the production machine and then doing a cold restore. I have been informed that you cannot copy a Legato save set from one machine to another unless the host names are identical. Can anyone confirm this fact? (or refute it?)