ProxMox 4.0 : Windows Server Backup

C

cm350

Member
Jan 16, 2015
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Hi Guys,

New customer, new server, new proxmox install, new setup.

Problem: For the backup of Windows Servers we use Windows Server backup, it's not bad, but not very good either. But that is not the problem, normally we add a disk to the virtual machine and dedicate it to the backup program. Sometimes it's on the NAS, sometimes it's on a usb drive, ... In this example it is a NFS mapping to a Synology DS415 NAS. This kind of setup always worked on Proxmox 3.x

When I want to add the drive and complete the wizard it gives the error: Formatting the disk has failed. Please ensure the disk is online and accessible. Incorrect function.

I already tried to format it manually which works!
I tried to put data on it, which works!
I tried to change the location of the qcow file to the local storage. Which does not work!

So my guess is that Proxmox 4.0 does something different with the virtual drives. Which makes our backup utility go crazy.

pveversion - v output:
proxmox-ve: 4.0-19 (running kernel: 4.2.3-2-pve)
pve-manager: 4.0-57 (running version: 4.0-57/cc7c2b53)
pve-kernel-4.2.2-1-pve: 4.2.2-16
pve-kernel-4.2.3-2-pve: 4.2.3-19
lvm2: 2.02.116-pve1
corosync-pve: 2.3.5-1
libqb0: 0.17.2-1
pve-cluster: 4.0-24
qemu-server: 4.0-35
pve-firmware: 1.1-7
libpve-common-perl: 4.0-36
libpve-access-control: 4.0-9
libpve-storage-perl: 4.0-29
pve-libspice-server1: 0.12.5-2
vncterm: 1.2-1
pve-qemu-kvm: 2.4-12
pve-container: 1.0-20
pve-firewall: 2.0-13
pve-ha-manager: 1.0-13
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u1
lxc-pve: 1.1.4-3
lxcfs: 0.10-pve2
cgmanager: 0.39-pve1
criu: 1.6.0-1
zfsutils: 0.6.5-pve4~jessie

Anyone some thoughts?

Thanks in advance,

Cliff.
 
Hi,
cant reproduce the problem here.
use win 7 with virto scsi.
map drive hotplug.
all works great.

can you give some more infos about your VM.config and the used windows driver?
 
Last edited by a moderator:
I've got the same problem. I'm using Proxmox 4
VM is Windows Server 2012 R2 with attached virtio scsi 1TB QCOW2 format
Install driver from virtio-win-0.1.102.iso

On Windows Server 2012 R2 in Windows Server Backup
Using Backup Schedule Wizard and give the attached virtio scsi as dedicated backup harddrive
Windows Server will always show an error when trying to finish the wizard

Formatting the disk has failed. Please ensure the disk is online and accessible.
Incorrect Function.

These steps work fine on Proxmox 3 on my another box
 
Sorry to bring an old topic to life.

This just went from not-so-important to very important on my list :)

The problem still exists on Proxmox 4.1-5

102.conf
bootdisk: virtio0
cores: 8
cpu: host
ide2: none,media=cdrom
memory: 8192
name: hostname
net0: virtio=0E:6E:FD:62:67:4D,bridge=vmbr0
numa: 1
onboot: 1
ostype: win8
smbios1: uuid=accb45af-76b0-409e-8591-d4c13c565ea4
sockets: 1
startup: order=3
virtio0: local:102/vm-102-disk-1.qcow2,size=50G
virtio1: NFSStorage:102/vm-102-disk-1.qcow2,size=100G

We used virtio: virtio-win-0.1.102.iso
 
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