What Should Be the Size of a Source?
Example: You can index the intranet of a company in three different sources—the first one can contain documents that are updated daily (ex.: project schedules), the second one documents updated once every few weeks (ex.: financial reports) and the third one documents rarely updated (ex.: documentation concerning previous versions of the product). Therefore, you can distribute the re-indexing process by refreshing the first source daily, the second one weekly and the third one monthly.
Note: The size of the index is limited by the license type. If a license allows the indexing of 100,000 documents, the total size of sources cannot exceed this number.