The IBM z/VM Operating System <[email protected]> wrote on 12/28/2007 09:40:22 AM:
> On Thursday, 12/27/2007 at 04:18 EST, "McKown, John" > <[EMAIL PROTECTED]> wrote: > > > How about if IBM allowed a zIIP or zAAP to do this? > > zIIPs and zAAPs are designed to reduce the software costs associated with > z/OS. You could get an IFL for the same price and use any left-over > cycles for Other Work. > > But I think I'd rather see the System z FCP adapter support being a > *target* WWPN+LUN. That would open up the moral equivalent of SAN Volume > Controller (or maybe SVC itself!) on System z. The targeted device driver > could emulate any kind of SCSI device it wanted to, hiding the backend > implementation, just as SVC does. You'd get the benefits of emulation > without the overhead of iSCSI. > > Alan Altmark > z/VM Development > IBM Endicott We already have firmware to make a channel a target port. Our STV (SCSI test vehicle) emulates SCSI disks. There's no reason why it couldn't be extended to function like an SVC. Ray Higgs System z FCP Development Bld. 706, B24 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 [EMAIL PROTECTED]
