-----Original Message----- From: Itamar Heim [mailto:iheim@redhat.com] Sent: terça-feira, 30 de julho de 2013 11:15 To: Gustavo Frederico Temple Pedrosa Cc: engine-devel@ovirt.org; Leonardo Bianconi; Vitor de Lima; Federico Simoncelli Subject: Re: [Engine-devel] Question about the attribute lunType (LUNs)
On 07/30/2013 05:13 PM, Gustavo Frederico Temple Pedrosa wrote:
-----Original Message----- From: Itamar Heim [mailto:iheim@redhat.com] Sent: terça-feira, 30 de julho de 2013 07:12 To: Gustavo Frederico Temple Pedrosa Cc: engine-devel@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
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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?
Yes, you are correct. We tested and the VDSM does not pass LUNs directly to QEMU.