[pve-devel] backup

[Dmitry Petuhov]

20.10.2014 02:20, Lindsay Mathieson пишет:
> True and in my case I wonder if the problem is my NAS. Backups to 
> locally attached USB drive are no problem, but I've always had 
> problems backing up to my NAS over GB ethernet, using NFS or SMB. I'd 
> often get 1 or 2 VM's failing with disk write errors, but since I 
> updated the firmware on my NAS (shell shock) and started using Kernel 
> 3.10 on proxmox nearly all of them are failing. NAS: QNAP TS-420 
> Switch: TP-Link TL-SG1024D 
> http://www.tp-link.com/en/products/details/?model=TL-SG1024D 
> Connection is two bonded 1Gb Links. The nas is also my shared storage. 
> At this stage, if people think the nas is the p[roblem, I'd be 
> upgrading it.
Yes, slow NFS servers/network is known to cause failing backup with VM 
crush. As workaround, you can try enable GZIP compression. It shall slow 
down NFS writes enough to let NAS server do its job. If it's not enough 
then try set bwlimit in /etc/vzdump.conf.