[ovirt-users] [FC22] testing oVirt 3.6.2 : Hot plug memory not working

wodel youchi wodel.youchi at gmail.com
Mon Feb 1 13:46:49 UTC 2016


What do mean?
I have to use RHEL7? What about Centos7 is this unavailable?

Regards.

2016-02-01 14:12 GMT+01:00 Yaniv Dary <ydary at redhat.com>:

> You need to use EL7 guest.
>
> Yaniv Dary
> Technical Product Manager
> Red Hat Israel Ltd.
> 34 Jerusalem Road
> Building A, 4th floor
> Ra'anana, Israel 4350109
>
> Tel : +972 (9) 7692306
>         8272306
> Email: ydary at redhat.com
> IRC : ydary
>
>
> On Mon, Feb 1, 2016 at 1:16 PM, wodel youchi <wodel.youchi at gmail.com>
> wrote:
>
>> Hi,
>>
>> I tried with the Centos6x64 VM, I didn't work, in ovirt's webui I have
>> this error :
>>
>> VDSM Noveria command failed: unsupported configuration: unknown device
>> type 'memory'
>> Failed to hot set memory to VM mail10. Underlying error message:
>> unsupported configuration: unknown device type 'memory'
>>
>> Looking into /sys/devices/system/memory there is no new memory banks
>> added.
>>
>> But, I tested with another VM, Centos7x64 which I updated with latest
>> packages : CentOS Linux release 7.2.1511 (Core)
>>
>> I tried to add memory, but I had the same error on ovirt's webui, I did
>> not work neither with el6x64 or el7x64
>>
>> and /sys/devices/system/memory didn't change, there are no new entries
>>
>> Regards
>>
>> 2016-02-01 10:30 GMT+01:00 Nathanaël Blanchet <blanchet at abes.fr>:
>>
>>> Hi,
>>>
>>> the hot add features starts working out of the box from centos 7.2 guest.
>>> On previous el7.x, two ways to do that:
>>>
>>> 5.2. How to online memory
>>>  ------------
>>> Even if the memory is hot-added, it is not at ready-to-use state.
>>> For using newly added memory, you have to "online" the memory block.
>>>
>>> For onlining, you have to write "online" to the memory block's state
>>> file as:
>>>
>>> % echo online > /sys/devices/system/memory/memoryXXX/state
>>>
>>> or to be active at boot, add this udev rule in
>>> /lib/udev/rules.d/55-ovirt-guest-agent.rules :
>>>
>>> SUBSYSTEM=="memory", ACTION=="add", TEST=="state",
>>> ATTR{state}=="offline", ATTR{state}="online"
>>>
>>> I can't tell you if this works on el6 guest, but why not testing for us
>>> ;)
>>>
>>> Le 01/02/2016 10:04, wodel youchi a écrit :
>>>
>>> Hi,
>>>
>>> I am using oVirt 3.6.2 on FC22 box, all-in-one installation, my purpose
>>> is to test it.
>>>
>>> I am using a simple Desktop :
>>> - one cpu core i5 3550 with 4 cores
>>> - 2x4 Go of RAM
>>>
>>> I installed a Centos 6x64 VM with all updates + ovirt guest agent.
>>>
>>> I tried to augment the memory from 1024 to 1536 (+512Mo) it didn't work
>>> I had to shutdown the VM for the change to take effect.
>>>
>>> Hot plug memory does it have something to do with the underneath
>>> hardware?
>>> or does it depend on the guest OS?
>>> or something else?
>>>
>>>
>>> Regards.
>>>
>>>
>>> _______________________________________________
>>> Users mailing listUsers at ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>> --
>>> Nathanaël Blanchet
>>>
>>> Supervision réseau
>>> Pôle Infrastrutures Informatiques
>>> 227 avenue Professeur-Jean-Louis-Viala
>>> 34193 MONTPELLIER CEDEX 5 	
>>> Tél. 33 (0)4 67 54 84 55
>>> Fax  33 (0)4 67 54 84 14blanchet at abes.fr
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>
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