Can't make backup of LXC

[Gektor]

Trying to make backup of LXC machine (installed from debian-11-standart_11.0-1_amd64.tar.gz), but it's just hangs on this step forever:

INFO: starting new backup job: vzdump 102 --compress zstd --mode snapshot --remove 0 --node pve --storage storage
INFO: filesystem type on dumpdir is 'cifs' -using /var/tmp/vzdumptmp1455778_102 for temporary files
INFO: Starting Backup of VM 102 (lxc)
INFO: Backup started at 2021-09-22 15:32:13
INFO: status = running
INFO: CT Name: pcsql
INFO: including mount point rootfs ('/') in backup
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
INFO: creating vzdump archive '/mnt/pve/storage/dump/vzdump-lxc-102-2021_09_22-15_32_13.tar.zst'

LXC configuration:

root@pve /etc/pve/lxc # cat 102.conf
arch: amd64
cores: 2
features: nesting=1
hostname: pcsql
lock: backup
memory: 4096
net0: name=eth0,bridge=vmbr1,hwaddr=XX:XX:XX:XX:XX:XX,ip=dhcp,ip6=auto,type=veth
ostype: debian
parent: vzdump
rootfs: system:subvol-102-disk-0,mountoptions=noatime,size=32G
startup: order=2,up=30
swap: 2048
unprivileged: 1

Proxmox packages versions:

proxmox-ve: 7.0-2 (running kernel: 5.11.22-4-pve)
pve-manager: 7.0-11 (running version: 7.0-11/63d82f4e)
pve-kernel-5.11: 7.0-7
pve-kernel-helper: 7.0-7
pve-kernel-5.11.22-4-pve: 5.11.22-8
pve-kernel-5.11.22-3-pve: 5.11.22-7
ceph-fuse: 14.2.21-1
corosync: 3.1.5-pve1
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown: not correctly installed
ifupdown2: 3.1.0-1+pmx3
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve1
libproxmox-acme-perl: 1.3.0
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.0-4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.0-6
libpve-guest-common-perl: 4.0-2
libpve-http-server-perl: 4.0-2
libpve-storage-perl: 7.0-11
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.9-4
lxcfs: 4.0.8-pve2
novnc-pve: 1.2.0-3
proxmox-backup-client: 2.0.9-2
proxmox-backup-file-restore: 2.0.9-2
proxmox-mini-journalreader: 1.2-1
proxmox-widget-toolkit: 3.3-6
pve-cluster: 7.0-3
pve-container: 4.0-9
pve-docs: 7.0-5
pve-edk2-firmware: 3.20200531-1
pve-firewall: 4.2-3
pve-firmware: 3.3-1
pve-ha-manager: 3.3-1
pve-i18n: 2.5-1
pve-qemu-kvm: 6.0.0-4
pve-xtermjs: 4.12.0-1
qemu-server: 7.0-13
smartmontools: 7.2-1
spiceterm: 3.2-2
vncterm: 1.7-1
zfsutils-linux: 2.0.5-pve1

 

[oguz]

hi,

INFO: filesystem type on dumpdir is 'cifs' -using /var/tmp/vzdumptmp1455778_102 for temporary files

is your cifs storage working correctly? how fast are the read/write speeds there?

are you able to backup any other containers? for testing you can try creating a smaller container with a different template and try backing it up, so we can narrow down the issue.

also does it work if you pick local storage as backup target?

 

[Gektor]

hi,


is your cifs storage working correctly? how fast are the read/write speeds there?

are you able to backup any other containers? for testing you can try creating a smaller container with a different template and try backing it up, so we can narrow down the issue.

also does it work if you pick local storage as backup target?

It's ZFS pool on two NVME Samsung PM983 3.84 TB, on same pool there is anothers VMs (but not LXC), and 100 GB disks backuping for few seconds...
I have try already local and CIFS storage, same issue...