Xtool -dd Deduplication Fixed Today

Unlike fixed-block deduplication (e.g., 4KB blocks), xdelta3 uses (CDC) similar to LBFS or rsync.

To restore the data, the .bin database generated during compression must exist ; if it is lost, xtool will fail to decode the data . Common Use Cases xtool -dd deduplication

: Stream deduplication currently uses a VM (Virtual Memory) file for decompression, which can impact performance on systems with limited disk space. Unlike fixed-block deduplication (e

: XTool scans incoming data (often game files or large installers) for repeatable segments. : XTool scans incoming data (often game files

| Tool | Granularity | Persistence | Use Case | |------|-------------|-------------|-----------| | | Variable chunks | Per-delta file only | Archiving, binary patching | | duperemove | Fixed/Extent | Filesystem btrfs/xfs | Online block dedup | | zfs dedup | Fixed (recordsize) | Persistent pool-wide | General storage | | borgbackup | Variable chunks | Persistent repo | Backup dedup |

Users typically invoke deduplication via the command line when preparing high-compression installers.