Since upgrading from v8.x.x to 9.0.11, my server backups are taking forever. The VMs / CTs are frozen bringing my network to a standstill.
The killer last night seems to have been:
This took 3.5hrs, whereas other backups finished in 10 minutes.
This particular CT uses my ZFS NAS storage hosted on the server, but is not included in the backup.
Full backup log attached.
107.conf
The killer last night seems to have been:
Code:
INFO: Backup started at 2025-10-25 03:25:08
INFO: status = running
INFO: CT Name: jellyfin
INFO: including mount point rootfs ('/') in backup
INFO: mode failure - some volumes do not support snapshots
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: CT Name: jellyfin
INFO: including mount point rootfs ('/') in backup
INFO: starting first sync /proc/2171416/root/ to /mnt/pve/Backup/dump/vzdump-lxc-107-2025_10_25-03_25_08.tmp
INFO: first sync finished - transferred 15.63G bytes in 6625s
INFO: suspending guest
INFO: starting final sync /proc/2171416/root/ to /mnt/pve/Backup/dump/vzdump-lxc-107-2025_10_25-03_25_08.tmp
INFO: final sync finished - transferred 50.37M bytes in 35s
INFO: resuming guest
INFO: guest is online again after 35 seconds
INFO: creating vzdump archive '/mnt/pve/Backup/dump/vzdump-lxc-107-2025_10_25-03_25_08.tar.zst'
INFO: Total bytes written: 15303936000 (15GiB, 2.3MiB/s)
INFO: archive file size: 11.08GB
INFO: adding notes to backup
INFO: prune older backups with retention: keep-daily=4, keep-last=5, keep-monthly=6, keep-weekly=2, keep-yearly=3
INFO: removing backup 'Backup:backup/vzdump-lxc-107-2025_03_29-01_36_40.tar.zst'
INFO: pruned 1 backup(s) not covered by keep-retention policy
INFO: Finished Backup of VM 107 (03:40:23)
INFO: Backup finished at 2025-10-25 07:05:31This particular CT uses my ZFS NAS storage hosted on the server, but is not included in the backup.
Full backup log attached.
107.conf
Code:
## Jellyfin LXC
#### https%3A//tteck.github.io/Proxmox/
#<a href='https%3A//ko-fi.com/D1D7EP4GF'><img src='https%3A//img.shields.io/badge/%E2%98%95-Buy me a coffee-red' /></a>
arch: amd64
cores: 2
dev0: /dev/dri/renderD128,uid=0,gid=107
features: nesting=1
hostname: jellyfin
memory: 2048
net0: name=eth0,bridge=vmbr0,gw=xx.xx.xx.1,hwaddr=32:1A:00:92:xx:xx,ip=xx.xx.xx.34/24,type=veth
onboot: 1
ostype: ubuntu
rootfs: Backup:107/vm-107-disk-1.raw,size=16G
startup: order=7,up=120
swap: 512