[ovirt-users] Q: ext4 noatime/nidiratime for oVirt node mount points

Yaniv Kaul ykaul at redhat.com
Thu Jan 4 16:43:49 UTC 2018


On Thu, Jan 4, 2018 at 5:04 PM, Donny Davis <donny at fortnebula.com> wrote:

> That makes more sense. Have you measured the write load on the disks from
> just the hypervisor processes. I have included a screen shot from mine, and
> the load is very low.... in the Kilobytes/sec
>

And those are probably the logs, which will be written anyway...
Y.


>
> I am not sure of the implications of changing these parameters, and I do
> not see an perceivable benefits from doing so.
>
> [image: Inline image 1]
>
> On Thu, Jan 4, 2018 at 9:51 AM, andreil1 <andreil1 at starlett.lv> wrote:
>
>>
>>
>> On 4 Jan 2018, at 14:52, Donny Davis <donny at fortnebula.com> wrote:
>>
>> What is the purpose in putting these directives in for the hypervisor?
>>
>>
>> I have small node where system and data domains located on the same RAID.
>> Data domains are on separate partitions.
>> These options allow minimise disk access activity.
>>
>>
>> On Thu, Jan 4, 2018 at 6:46 AM, andreil1 <andreil1 at starlett.lv> wrote:
>>
>>> Hi !
>>>
>>> Is it safe to turn on these options (noatime, nodiratime) in oVirt node
>>> fstab for these mount points?
>>> /home
>>> /
>>> /tmp
>>> /var
>>> /var/log
>>> /var/log/audit
>>>
>>> Node 4.2 installed on CentOS, not with node DVD.
>>>
>>> Thanks.
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>
>>
>>
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>>
>
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