A job to duplicate data between two Data Domain appliances is taking much longer than expected and it does not appear that the duplicate job is using optimized duplication for the job
This can be caused by an incorrect setting in the registry
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.