<div dir="ltr"><div><div>Hi Alex, </div>I checked it again and found that blkio controller is already mounted. Output of above commands are also same. </div>So the problem still persists. <div class="gmail_extra"> <div class="gmail_quote">On Wed, Mar 20, 2013 at 8:23 AM, Alex Jia <<a href="mailto:ajia@redhat.com" target="_blank">ajia@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Saurabh, please make sure blkio controller has been mounted on your host firstly then need to restart libvirtd service after manually mounting it. # lssubsys cpuset cpu cpuacct memory devices freezer net_cls blkio or # grep blkio /proc/mounts cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0 -- Regards, Alex <div><div class="h5"> ----- Original Message ----- From: "Saurabh Deochake" <<a href="mailto:saurabh.d04@gmail.com">saurabh.d04@gmail.com</a>> To: <a href="mailto:libvirt-users@redhat.com">libvirt-users@redhat.com</a> Sent: Tuesday, March 19, 2013 3:00:53 PM Subject: [libvirt-users] Errors while using blkiotune command Hi all, I want to limit the I/O bandwidth inside the container, so I used virsh command blkiotune. But when I enter a command: virsh # blkiotune lxcguest --weight 250 I get following errors: error: Unable to change blkio parameters error: Requested operation is not valid: blkio cgroup isn't mounted I also have blkio cgroup mounted. What can be the problem? Thanks in advance. Regards, Saurabh Deochake </div></div>_______________________________________________ libvirt-users mailing list <a href="mailto:libvirt-users@redhat.com">libvirt-users@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/libvirt-users" target="_blank">https://www.redhat.com/mailman/listinfo/libvirt-users</a> </blockquote></div> </div></div>