James, i try to understand what the introduction of the vports means for zfcp, since this driver also supports NPIV. The documentation for the fc transport class describes a driver that would fully control the adapter and the creation of virtual address. Since you mentioned Xen, i assume that this could be a dom0. With zfcp, the hardware FCP adapter does NPIV and only hands out the virtual address to individual Linux instances. zfcp gets the assigned virtual address for the Linux instance. This address is used for allocating the scsi_host structure. Basically, the whole system uses NPIV, but each Linux only uses one assigned virtual WWPN. My current understanding is that the vports introduced in the fc transport class do not affect the Linux systems that only use one virtual address. To map this to Xen, the dom0 would use the vports to show all virtual address, and each domU would use the assigned virtual address without showing the vport in sysfs. Is this correct? Christof - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
