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

[Yaniv Dary]

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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