Windows locked files

On Windows, some files can be locked by another process.

This is common for: - Plugin databases (H2, SQLite) - Active log files

FULL mode behavior

During FULL backup, when copying a file fails due to an OS lock: - The backup continues - The locked file is skipped - A warning is logged - The backup folder contains locked-files.txt

This prevents FULL backups from failing on production servers.

configs-only mode

Configs-only usually targets text config files.

Locked database files are not part of the plan, which is why: - configs-only is the default - it is safer on Windows

Recommendation

Exclude database extensions in FULL mode:

• .db
• .sqlite
• .mv.db

Also consider excluding folders with large mutable data.