This was recently addressed on this list. To quote Alan Altmark from the relevent thread:
----------------start quote-------------------------------- Date: Sun, 26 Aug 2007 02:13:59 -0400 Reply-To: The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> Sender: The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> From: Alan Altmark <[EMAIL PROTECTED]> Subject: Re: OSA question Content-Type: text/plain; charset="US-ASCII" On Friday, 08/24/2007 at 03:01 EDT, "O'Brien, Dennis L" <Dennis.L.O'[EMAIL PROTECTED]> wrote: > Unless things have changed, each OSA triplet has to start on an even real > address, but the real addresses don't have to be consecutive. Things changed quite a while ago. The address can start on even or odd. Device drivers on older systems may still reflect the original start-with-even requirement. Alan Altmark z/VM Development IBM Endicott -------------------end quote------------------------------ I've always used whatever address is next in line on both the real OSA addresses (VM 4.4 & 5.3) and virtual NIC address ranges (SUSE SLES 8, 9 & 10). Brian Nielsen On Wed, 26 Sep 2007 10:17:51 -0700, Daniel Allen <[EMAIL PROTECTED]> wrot e: >I have the following OSA environment: > >q 100-10f > >OSA 0100 ATTACHED TO TCPIP 0100 > >OSA 0101 ATTACHED TO TCPIP 0101 > >OSA 0102 ATTACHED TO TCPIP 0102 > >OSA 0103 FREE > >OSA 0104 ATTACHED TO BH3A 0104 > >OSA 0105 ATTACHED TO BH3A 0105 > >OSA 0106 ATTACHED TO BH3A 0106 > >OSA 0107 FREE , OSA 0108 FREE , OSA 0109 FREE , OSA 010A >FREE >OSA 010B FREE , OSA 010C FREE , OSA 010D FREE , OSA 010E >FREE >OSA 010F FREE > > >TCPIP requires three addresses and the first two addresses must be an >even-odd pair. > >Is that correct ? > >If it is correct and I need to add another z/OS guest, I would use 108, >109 and 10A. > >Is there any way to 103 and 107 so all the OSA addresses are used ?
