# Administration
This section contains descriptions of functions that are available only to Administrators
# Check if content is downloaded from links
Allows you to check if content with provided links in Metadata has been downloaded and imported
Link checking interface
# Clear server cache Danger
Causes server to completely clear cover cache and run caching service
Duration of this procedure is directly proportional to number of imported files
# Create unique archive hashes Danger
For each Archive
and Serie
creates unique static hashes and writes them in book_info.json metadata
Duration of this procedure is directly proportional to number of imported files
# Write all metadata in the archives Danger
If you want to speed up metadata editing by writing only to the database, you can start writing all metadata from database into book_info.json files
Advanced users familiar with SQLite (opens new window) databases can mass change Archives
data directly in database and use this function to write changes to files
Duration of this procedure is directly proportional to number of imported files