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

[Donny Davis]

Yaniv,

If there was a central logging server, would the hypervisors send them
there and stop writing to disk (given its setup properly), or does it write
them anyway?


https://www.ovirt.org/documentation/admin-guide/chap-Log_Files/

On Thu, Jan 4, 2018 at 11:43 AM, Yaniv Kaul <ykaul at redhat.com> wrote:

>
>
> 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.
>>>>
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>>>>
>>>
>>>
>>>
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>>
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>
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