Windows VM crashes when vzdump snapshot back-up starts

check-ict

Well-Known Member
Apr 19, 2011
102
18
58
Hello,

I have a server with 2x8 core AMD and 128GB memory for around 60 Windows VDI's, a firewall and a fileserver. It has 8x 1TB 7200 SATA disks in RAID10 (hardware).

The server is really fast and the back-ups work fine, however there is 1 problem.

My fileserver crashes every time a VZdump back-up starts (like 3 minutes after). It isn't the first VM that gets backed-up, so I guess it has something to do with the back-up trigger itself.

All Windows machines are Windows server 2008 R2 64-bit with the latest updates. All are using virtio disk and E1000 network adapter. The only thing that makes the Fileserver unique is the fact that is has 6 disks attached to it (5x 100GB and 1x 1000GB).

What can I do to prevent my fileserver from crashing?

CPU BOGOMIPS: 64006.27
REGEX/SECOND: 634034
HD SIZE: 9.17 GB (/dev/mapper/pve-os)
BUFFERED READS: 407.09 MB/sec
AVERAGE SEEK TIME: 6.25 ms
FSYNCS/SECOND: 1812.10
DNS EXT: 5.20 ms

pve-manager: 1.9-26 (pve-manager/1.9/6567)
running kernel: 2.6.35-2-pve (I need this kernel because 2.6.32-4-pve can't start a Windows server with virtio disk + network)
proxmox-ve-2.6.35: 1.8-13
pve-kernel-2.6.32-4-pve: 2.6.32-33
pve-kernel-2.6.35-2-pve: 2.6.35-13
qemu-server: 1.1-32
pve-firmware: 1.0-15
libpve-storage-perl: 1.0-19
vncterm: 0.9-2
vzctl: 3.0.29-3pve1
vzdump: 1.2-16
vzprocps: 2.0.11-2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.15.0-2
ksm-control-daemon: 1.0-6
 
Last edited:
I am experiencing this as well. Using Proxmox 2.1 with a Dell R710 server, Windows 2008 R1/R2 and a RAID 6 across 6 250GB drives.

If anyone has any information or tips to track down the problem I would appreciate it very much! :)
 

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