Hi flaviosr,
I can only answer a couple of your questions:
* which is the device name? omniscsi.device? gvpscsi.device?
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The device name is gvpscsi.device
can I use the HDToolBox to config the HD?
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Unfortunately you can not use HDToolBox to config the HD, you need to use FassstPrep disk (or the like) from GVP.