[CentOS-virt] KVM

Gokan Atmaca
Mon, 08 Feb 2016 19:58:30 -0000

> Are the disk partitions properly aligned to 4k boundary on the host (and in
> the guests too) ?
>
There are 5 in total server. 32G ram. 2T r1 (soft) disk.


On Mon, Feb 8, 2016 at 9:41 PM, Zoltan Frombach <zoltan at frombach.com>
wrote:
> Are the disk partitions properly aligned to 4k boundary on the host (and in
> the guests too) ?
>
> See
>
http://www.ibm.com/developerworks/library/l-linux-on-4kb-sector-disks/index.html
> and this:
>
http://unix.stackexchange.com/questions/247387/check-if-partitions-are-aligned-properly-for-performance
>
>
> On 2/8/2016 8:12 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..
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