Hi Shigeki, Minimal crawls do not guarantee that there is no document deletion. Such crawls only do the least amount of work possible based on what model the underlying connector implements. This often just means not doing the "cleanup" phase at the end of the job run, which typically removes no-longer-reachable documents. But if, for instance, you are using the web connector and you have hop count filtering enabled, then the framework will keep track of hop count and will remove all documents that exceed it, which does not require the end-of-job cleanup phase.
If your goal is to avoid removing any previously crawled documents, then I am afraid that MCF does not have any real support for your model. "Start minimal" is certainly not going to help you. Thanks, karl
