[Engine-devel] Question about the attribute lunType (LUNs)

[Itamar Heim]

On 07/30/2013 05:13 PM, Gustavo Frederico Temple Pedrosa wrote:
>> -----Original Message-----
>> From: Itamar Heim [mailto:iheim at redhat.com]
>> Sent: terça-feira, 30 de julho de 2013 07:12
>> To: Gustavo Frederico Temple Pedrosa
>> Cc: engine-devel at ovirt.org; Leonardo Bianconi
>> Subject: Re: [Engine-devel] Question about the attribute lunType (LUNs)
>>
>> On 07/29/2013 09:06 PM, Gustavo Frederico Temple Pedrosa wrote:
>>> Hello everyone,
>>>
>>> The QEMU/KVM on IBM POWER does not support iSCSI yet. This requires
>>> the implementation of methods that evaluate if a Disk is a iSCSI LUN
>>> or not, in order to avoid its use in this specific architecture.
>>> Looks like this can be determined by the attribute lunType (which is
>>> of the type StorageType, an Enum) of the class LUNs. But when I
>>> retrieve the object, the attribute lunType has the value "UNKNOWN",
>>> even if I've setted it with another value. In the class
>>> LunDAODbFacadeImpl there is not a call to the "entity.setLunType"
>> method.
>>>
>>> Does anyone know how to retrieve the attribute lunType? Is the
>> "UNKNOW"
>>> value a bug?
>>>
>>> Thanks,
>>>
>>> Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
>>>
>>>
>>>
>>> _______________________________________________
>>> Engine-devel mailing list
>>> Engine-devel at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>
>>
>> Gustavo - what are you trying to achieve exactly? not allowing iscsi storage
>> domains for ppc, or direct lun type disks (or something else)?
>>
>> Thanks,
>>      Itamar
>
>
>
> Hello Itamar,
>
> The QEMU/KVM on IBM POWER does not support direct LUN disks (i.e. -drive file=iscsi://ip_address/target/1), so this kind of device cannot be available on the frontend.
>
> Thanks,
> Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
>

i could be wrong, but i'm pretty sure direct lun disks in ovirt are done 
by the host doing the iscsi connection, and mounting the disk as a 
regular block device to the guest?