Incremental backup requires the previous full backup and incremental backup to fully restore data.

This statement accurately reflects the technical characteristics of traditional incremental backup strategies found in Huawei data protection guides. An Incremental Backup only copies the data that has changed since the last backup (whether that was a full or an incremental backup).

While this saves significant time and storage space during thebackup window, it adds complexity duringrestoration. To fully restore a system to its latest state, the administrator must first restore the lastFull Backupand then sequentially apply every subsequentIncremental Backupin the correct order. If any single incremental tape or file in the chain is missing or corrupted, the restoration cannot be completed beyond that point. Because the system must process multiple data sets to reconstruct the final image, the total recovery time (RTO) is indeed longer and the process is slower compared to restoring from a single Full Backup.