filsystemnivåbackuper

Filsystemnivåbackuper refers to a method of data backup that operates at the file system level. This approach involves copying files and directories from a storage system, preserving their structure, attributes, and metadata. Unlike block-level backups, which copy raw data blocks from a disk, file system level backups are aware of the file system's organization. This means that when restoring, individual files or directories can be precisely pinpointed and retrieved without needing to restore the entire disk image.

The primary advantage of file system level backups is their granular restore capability. This is highly beneficial for recovering specific data, such as a single deleted document or a corrupted configuration file, much faster and more efficiently than block-level methods. They are also generally more space-efficient, especially for systems with many small files, as they only back up the actual data and file system metadata, not unused space within blocks.

Common tools and techniques for file system level backups include incremental and differential backups. Incremental backups only capture changes made since the last backup (whether full or incremental), while differential backups capture all changes since the last *full* backup. This strategy helps reduce backup windows and storage requirements. However, file system level backups can be slower than block-level backups for very large datasets or systems with high I/O activity, as they involve more overhead in traversing and copying individual file entries. Restoration speed can also be dependent on the underlying storage performance and the number of files being restored.