Disk corruption after live migration (Win2008r2)

Nov 20, 2012
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3
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Hello,

Please help me. Sorry for my english.

Before I performed live migration many times, but today after migration windows report about many error on disk. After reboot vm chkdsk found and fix many error. I lost data and restored vm from backup.

Before I had only one (or may be two) similar problem with live migration for 5 year using PVE.

Please say me which conditions for safe live migration?
If I set disk cache write-through. Is more safe?

Migration log:
Nov 17 09:10:43 starting migration of VM 200 to node 'pve11' (103.11)
Nov 17 09:10:43 copying disk images
Nov 17 09:10:43 starting VM 200 on remote node 'pve11'
Nov 17 09:10:44 starting ssh migration tunnel
Nov 17 09:10:45 starting online/live migration on localhost:60000
Nov 17 09:10:45 migrate_set_speed: 8589934592
Nov 17 09:10:45 migrate_set_downtime: 0.1
Nov 17 09:10:47 migration status: active (transferred 127560706, remaining 4179546112), total 4312227840)
<- skip ->
Nov 17 09:11:55 migration status: active (transferred 4437911405, remaining 9474048), total 4312227840)
Nov 17 09:11:56 migration speed: 57.69 MB/s - downtime 90 ms
Nov 17 09:11:56 migration status: completed
Nov 17 09:11:59 migration finished successfuly (duration 00:01:17)
TASK OK


- 200.conf -

boot: dcn
bootdisk: virtio0
cores: 2
ide2: none,media=cdrom
memory: 8192
name: garant
net0: e1000=22:19:CC:0F:5B:23,bridge=vmbr300
ostype: win7
sockets: 1
virtio0: vm_shared2:vm-200-disk-1,size=50G
virtio1: vm_shared2:vm-200-disk-2,size=620G


VM disk store on FC shared storage.
Windows virtio driver version 60.65.104.7100

Source host
> pve-manager/3.4-6/102d4547 (running kernel: 2.6.32-39-pve)

Dest host
> pve-manager/3.4-11/6502936f (running kernel: 2.6.32-40-pve)