DSpace with Multiple Handle Prefixes
If you are using DSpace 1.6.2 and trying to retain Handle resolving on exiting items after merging two or more DSpace instances into on repository. You need to get CNRI to update all the desired prefixes using the same sitebndl.zip package. also in dspace.cfg add a (undocumented) configuration key-value pair handle.plugin.checknameauthority = false. And update