laurent22/rsync-time-backup
Rsync Time Backup
该工具是一个命令行工具，旨在创建本地或远程数据的增量、时间戳快照。它作为一个基于 Shell 的编排器，协调系统工具以维护版本化的文件归档，允许在无需专有软件的情况下恢复特定的数据状态。
该工具通过使用文件系统硬链接来引用跨多个快照未更改的文件而脱颖而出，这最大限度地减少了存储消耗，同时保持每个备份目录结构独立。它结合了一个专用的保留管理器，可根据基于时间的策略或可用磁盘空间自动修剪旧快照，以优化存储使用。
操作可靠性通过一系列安全机制进行维护，包括防止并发访问的锁文件控制，以及允许中断的操作从最后成功点恢复的原子状态标记。该系统支持通过加密 Shell 连接进行远程同步，并包括一个模式匹配引擎，用于在传输过程中选择性地包含或排除文件。
Features
- RSync - Creates incremental, time-stamped snapshots of local or remote data using rsync and hard links for storage efficiency.
- File System Incremental Backups - Creates space-efficient, timestamped incremental snapshots of files to ensure versioned data recovery.
- Snapshotting Strategies - Uses filesystem hard links to reference unchanged files across snapshots, minimizing storage consumption while maintaining independent directory structures.
- Backup and Recovery - Ensures reliable backup operations by enforcing file locks and supporting resumption of interrupted tasks.
- POSIX-Compliant Shell Scripts - Coordinates system utilities and backup logic through POSIX-compliant shell scripts.
- Synchronization Exclusions - Filters file paths against user-defined rules to selectively include or omit data from the synchronization process.
- SSH Infrastructure Managers - Provides a secure synchronization solution that transfers files to off-site storage using encrypted shell connections.
- File Locking - Prevents data corruption by creating temporary filesystem lock files to block simultaneous access to backup destinations.
- State History Markers - Maintains metadata markers to track backup progress and allow resumption of interrupted operations.
- Remote Backup Transfers - Transfers and stores critical data on off-site servers over secure shell connections to protect against local hardware failure.
- Policy-Based Retention - Automatically prunes old snapshots based on time-based policies or available disk space to optimize storage usage.
