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

[Nathanaël Blanchet]

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 list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

-- 
Nathanaël Blanchet

Supervision réseau
Pôle Infrastrutures Informatiques
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Tél. 33 (0)4 67 54 84 55
Fax  33 (0)4 67 54 84 14
blanchet at abes.fr

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