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

[wodel youchi]

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.
>
>
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>
> --
> 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 14blanchet at abes.fr
>
>
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