I should edit my last email about this topic. I deactive hard and then boot from centos minimal cd and get the no usable disk error. It was my mistake. I change the disk to active disk again and boot with centos cd and i get Storage Device Warning window and one of the lines was:
We could not detect partitions of filesystems on this device.
sorry for my wrong report.

On 10/01/2013 10:49 PM, Federico Simoncelli wrote:

Hi Martijn,
 can you post somewhere the relevant vdsm logs (from the spm host)?

Thanks,