To estimate the number of artifacts in a proposed migration, Lifecycle Management provides the following optional argument:
Utility.bat c:/lcm/lcmdefinition.xml [-estimate]
If the [-estimate] argument is specified, then the number of artifacts in the migration is computed by communicating with the appropriate source(s) and/or destination(s) specified in the migration definition. The report contains, per task specified in the migration definition, the total number of artifacts, total accumulated size of artifacts, and a list of artifacts and directories that will participate in the migration. You can customize the location of this report by updating the report.folder_path property. See Editing Migration Properties.