I just clean up my system to delete whole files (3 years old collections of documents) from the front-end manually
Then also delete it from the trash bin.
But when I checked into alf_data/contentstore, those files are still there and occupy disk space.
alfresco@dmsdev:/opt/alfresco-community/alf_data$ du -h --max-depth=1 contentstore/
1. How to ensure that those files are safe to delete?
2. How to check between list on database and file system, so if we are not found files in db, then we are safe to delete on file system.