About replicating Patch Management Solution for Windows data in hierarchy
Downloading software update catalog files (patch management metadata, or patch management import files) to multiple Notification Server computers can consume considerable network resources and time. Notification Server hierarchy features remove the need to download patch management metadata files individually. You can download the files once to a single parent Notification Server. Then you can use Patch Management Solution replication rules to send the relevant data to any number of child Notification Server computers. The replicated data on the child Notification Server computers is identical to the data on the parent.
Patch Management Solution supports only two-level hierarchy. A child Notification Server computer cannot be a parent to another child.