to answer this: https://mail.python.org/pipermail/borgbackup/2019q1/001280.html
> Gesendet: Freitag, 01. März 2019 um 12:50 Uhr > Von: [email protected] > An: [email protected] > Betreff: [PVE-User] pve-zsync + borgbackup "changed size" discrepancy > > hi, > i'm syncing a zfs dataset with pve-zsync to another proxmox host and also do > backup with borg-backup of the same > dataset via temporary backup snapshot. > > i have shutdown all VMs on the dataset and only leave a single win10 vm up > and running. > > i see a huge discrepancy between what pve-zsync is reporting as "changed > data" to be synced to the other node > and what borbackup is reporting regarding backup growth (see below). > ("deduplicated size" means: this is the size > the archive grew after the data has been checksummed, deduplicated and > compressed) > > does anybody have a clue why this differs by "roughly a power of 10" ? > > is pve-zsync estimation wrong ? > is borgbackup "overhead" so big when backing up large single qcow2 files ? > > regards > roland > > pve-zsync estimated size: > total estimated size is 1.79M > total estimated size is 22.9M > total estimated size is 13.5M > total estimated size is 24.4M > total estimated size is 22.9M > total estimated size is 24.1M > total estimated size is 10.2M > total estimated size is 20.9M > total estimated size is 81.0M > total estimated size is 53.3M > total estimated size is 10.8M > total estimated size is 14.1M > total estimated size is 10.9M > total estimated size is 189M > total estimated size is 29.0M > total estimated size is 21.2M > total estimated size is 14.1M > total estimated size is 13.1M > total estimated size is 11.0M > total estimated size is 14.1M > total estimated size is 11.3M > total estimated size is 14.9M > total estimated size is 10.5M > total estimated size is 14.2M > total estimated size is 20.4M > > BorgBackup growth > Original size Compressed size Deduplicated size > This archive: 111.69 GB 19.86 GB 95.31 MB > This archive: 111.69 GB 19.86 GB 197.58 MB > This archive: 111.69 GB 19.86 GB 119.40 MB > This archive: 111.69 GB 19.86 GB 138.81 MB > This archive: 111.69 GB 19.86 GB 180.30 MB > This archive: 111.69 GB 19.86 GB 205.75 MB > This archive: 111.69 GB 19.86 GB 76.22 MB > This archive: 111.69 GB 19.86 GB 159.60 MB > This archive: 111.69 GB 19.86 GB 636.18 MB > This archive: 111.69 GB 19.86 GB 413.14 MB > This archive: 111.69 GB 19.86 GB 83.86 MB > This archive: 111.69 GB 19.86 GB 122.86 MB > This archive: 111.69 GB 19.86 GB 108.17 MB > This archive: 111.69 GB 19.86 GB 153.89 MB > This archive: 111.69 GB 19.89 GB 946.72 MB > This archive: 111.69 GB 19.89 GB 126.48 MB > This archive: 111.69 GB 19.89 GB 139.23 MB > This archive: 111.69 GB 19.89 GB 113.23 MB > This archive: 111.69 GB 19.89 GB 67.53 MB > This archive: 111.69 GB 19.89 GB 129.25 MB > This archive: 111.69 GB 19.89 GB 74.28 MB > This archive: 111.69 GB 19.89 GB 110.28 MB > This archive: 111.69 GB 19.89 GB 80.15 MB > This archive: 111.69 GB 19.89 GB 92.86 MB > This archive: 111.69 GB 19.89 GB 160.57 MB > _______________________________________________ > pve-user mailing list > [email protected] > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ pve-user mailing list [email protected] https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
