RRD graph Disk IO is empty after upgrade to version 3

Hi, after upgrade to proxmox 3 is rrd graph Disk IO zero (empty) on all containers. Any ideas ? I check syslog but without result.

AFAIK OpenVZ only provides those statistics if you use the CFQ scheduler. But we recently switched to 'deadline' by default.

I suggest that you switch back if you need those values:

http://pve.proxmox.com/wiki/IO_Scheduler

(The new default scheduler often outperforms CFQ)
 
Hello,

I've just noticed the graph draw only read rate, what about diskwrite? In KVM it seems normal, in OpenVZ it's simply on 0, software like atop or iotop gives me good records inside containers. Proxmox 3.3 Kernel 2.6.32-31-pve CFQ sheduler. Thank you for your help, it'll be useful to get it working.

dc1.png
 

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