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

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