Backup Error -6 : No data available - Proxmox ve 5.4-3

[RHC Hosting]

Dear All,
When trying to backup a VM, the following message occurs after 3%. on another vm, it occurs after 69%.
All vms are ok and clean.
All vms are booting ok
There is enough storage space on local disk
Tried a NFS Storage too, same error.
Tried backing up live and stopped, same error.
This is the full log :
------
NFO: starting new backup job: vzdump 125 --node tb-3 --storage bkps --compress lzo --remove 0 --mode snapshot
INFO: Starting Backup of VM 125 (qemu)
INFO: status = stopped
INFO: update VM 125: -lock backup
INFO: backup mode: stop
INFO: ionice priority: 7
INFO: VM Name: debas-1
INFO: include disk 'scsi0' 'nvstorage:vm-125-disk-0' 20G
INFO: creating archive '/var/lib/vz/dump/vzdump-qemu-125-2020_11_04-11_35_01.vma.lzo'
INFO: starting kvm to execute backup task
INFO: started backup task '884e879f-9f4d-41f6-a09f-7206b0787d62'
INFO: status: 1% (348192768/21474836480), sparse 0% (169164800), duration 1, read/write 348/179 MB/s
ERROR: job failed with err -61 - No data available
INFO: aborting backup job
INFO: stopping kvm after backup task
ERROR: Backup of VM 125 failed - job failed with err -61 - No data available
INFO: Backup job finished with errors
TASK ERROR: job errors
-----------

Any help will be greatly appreciated.

Thanks

 

[oguz]

hi,

can you post your vm configs qm config VMID for both failing VMs?

also please your /etc/pve/storage.cfg file

 

[RHC Hosting]

Hello Oguz,

Thanks for your assistance. Please see below :

-------

root@tb-3:~# cat /etc/pve/storage.cfg
dir: local
path /var/lib/vz
content vztmpl,iso,backup
maxfiles 1
shared 0

lvmthin: local-lvm
thinpool data
vgname pve
content rootdir,images

lvm: nvstorage
vgname nvstorage
content images,rootdir
shared 0

nfs: bkps
export /bkps
path /mnt/pve/bkps
server 91.107.120.4
content backup
maxfiles 3
options vers=3
----------

root@tb-3:~# qm config 125
bootdisk: scsi0
cores: 2
description: 192.168.1.15
ide2: local:iso/CentOS-7-x86_64-Minimal-1810.iso,media=cdrom
memory: 2048
name: debas-1
net0: virtio=1A:48:FD:5F:A4:60,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: nvstorage:vm-125-disk-0,size=20G
scsihw: virtio-scsi-pci
smbios1: uuid=ef5b6796-da46-4429-86e0-3d01b7a7f3b8
sockets: 2
vmgenid: 972dd290-d7a7-4f57-88c4-1671dcbba56b


and

qm config 170
bootdisk: scsi0
cores: 2
description: 192.168.1.18
ide2: none,media=cdrom
memory: 2048
name: debas-2
net0: virtio=E2:F3:21:6B:3F:E2,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: nvstorage:vm-170-disk-0,size=15G
scsihw: virtio-scsi-pci
smbios1: uuid=1e044aa7-066c-402b-ac44-ebdb67948b1b
sockets: 2
vmgenid: d895a5d5-4417-4cac-9234-34157be5a006


-------

Thanks

 

[oguz]

have you tried making a local backup instead of on NFS drive? if the local backups work then it's likely an issue with your NFS or the connection to it.

 

[RHC Hosting]

Yes, it failed on the local backup initially, reason why i tried an NFS. Also, i've updated Proxmox, didn't make any difference - rebooted the node, no change.

Any idea how this can be fixed?

Thanks again

 

[oguz]

okay.

maybe you can check the VM disks with fsck or similar?

 

[RHC Hosting]

okay.

maybe you can check the VM disks with fsck or similar?

Doing it now - will report back shortly

 

[RHC Hosting]

Hello Oguz, no errors on the disks...

What is puzzling is the error details : "ERROR: job failed with err -61 - No data available" - what does no data available mean? Although all the data is good - the vm starts ok, rw is ok - everything great, it's just the backup that doesn't run to completion. Is there another (easy) way to migrate vms to another node... ? I have 31 nodes to move, and they're all giving the same error. We have another node, same hardware specs, giving the EXACT same issue. So it's def. not the disk i would have thought... :-(

 

[RHC Hosting]

Anyone available to help? Still can't take backups :-(

Error is Backup of VM 125 failed - job failed with err -61 - No data available

Thanks in advance.