Slow disks will show up as higher I/Owait times. If your seeing 99% cpu usage then your likely looking at some other problem. If you run top what are you seeing on the %Cpu(s) line? On 02/08/2016 02:20 PM, Gokan Atmaca wrote: >> I'm guessing you're using standard 7,200rpm platter drives? You'll need >> to share more information about your environment in order for us to >> provide useful feedback. Usually though, the answer is 'caching' and/or >> 'faster disks'. > Yes , 7.2k rpm disks. 2T mirror (soft). In fact, I had such a > preference for slightly more capacity. > Unfortunately very expensive SAS drives. But this works only if the > server in question occur. > In this case, about 15 minutes. progress. > > > On Mon, Feb 8, 2016 at 9:13 PM, Digimer <lists at alteeve.ca> wrote: >> On 08/02/16 02:12 PM, Gokan Atmaca wrote: >>> Hello >>> >>> I use KVM. In a virtual machine "jbd2 dm-0" disk I / O is very >>> increases. It consumes up to 99%. For this reason, slowing down the >>> other virtual machine. What should I do to solve the problem. ? >>> >>> Thanks.. >> I'm guessing you're using standard 7,200rpm platter drives? You'll need >> to share more information about your environment in order for us to >> provide useful feedback. Usually though, the answer is 'caching' and/or >> 'faster disks'. >> >> -- >> Digimer >> Papers and Projects: https://alteeve.ca/w/ >> What if the cure for cancer is trapped in the mind of a person without >> access to education? >> _______________________________________________ >> CentOS-virt mailing list >> CentOS-virt at centos.org >> https://lists.centos.org/mailman/listinfo/centos-virt > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > https://lists.centos.org/mailman/listinfo/centos-virt -- Alvin Starr || voice: (905)513-7688 Netvel Inc. || Cell: (416)806-0133 alvin at netvel.net ||