The IBM z/VM Operating System <[email protected]> wrote on 12/07/2007 11:25:06 AM:
> On Friday, 12/07/2007 at 06:16 EST, Rick Troth <[EMAIL PROTECTED]> wrote: > > > Handing each guest its own HBA (host bus adapter, > > the open systems term for and FCP adapter) kind of blows > > one of the reasons to go virtual. > > Eh? 480 servers can use a single FCP adapter (chpid) concurrently. That's > the whole point of N_port ID virtualization: 480 separate fabric > endpoints. > > Alan Altmark > z/VM Development > IBM Endicott Not all 480 subchannels can be used with NPIV because of switch limitations. The 480 number was chosen arbitrarily from the layout of the SIGA vector long before NPIV was implemented. I think Brocade supports the most virtual nports per physical port, 255. Ray Higgs System z FCP Development Bld. 706, B24 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 [EMAIL PROTECTED]
