eBackup permanent incremental backup
1. Except for the first full backup, the rest of the backups only back up the incremental data relative to the last backup.
2. Each time the image is backed up, a complete virtual machine image is formed by the metadata file, and the effect of each backup is a full backup.
3. Reduce storage space consumption, save user investment, improve backup efficiency, and reduce backup window requirements.
4. Support online backup, no virtual machine to stop business.
5. Backup through virtual machine snapshots, eliminating the need to install agents on virtual machines, reducing or eliminating the impact on virtual machines.
6. Support VM block level incremental backup / incremental recovery, greatly improve backup / recovery efficiency, shorten backup / recovery window.