There might be situations where the metadata for stored infostore documents does not indicate the referenced file's md5 checksum. This may be the case for files that were stored more than 4 years ago, or for files that have been uploaded in chunks, e.g. during a migration.

When synchronizing via OX Drive, the missing checksums for those files are calculated on demand, which requires the files to be retrieved from the underlying storage. When having many or very large files where the checksum needs to be calculated for, this may lead to an increased read load which may impact other processes and systems in the installation.

Therefore, a new commandline tool named 'calculatefilechecksums' is introduced, which allows to calculate such missing checksums on demand (operating either on a per context or database schema level).