On Tuesday, 06/16/2015 at 12:50 EDT, Mark Post <mp...@suse.com> wrote: > >>> On 6/15/2015 at 11:54 PM, Alan Altmark <alan_altm...@us.ibm.com> wrote: > > Neither z/VM nor Linux have to specify a portname (real or virtual). I > > recommend that you do NOT specify the portname. > > > > I don't understand why the distros still worry about the portname. We got > > rid of the requirement for z/VM and Linux on the z900 and z800 back in > > 2003. Just issue a msg that it's obsolete and ignore it. > > Even for Linux in an LPAR sharing an OSA with a z/OS system that is specifying > (their equivalent of) a portname?
Yes, even then. You can google "OSA portname relief". I've posted this a few times, from October 2003: An OSA-Express microcode update for the IBM zSeries z800 and z900 machines became available today that makes the portname optional for the OSA-Express in QDIO mode. The update is Driver 3G - EC stream J11204, MCL032 (OSA level 3.33). This is a functional change that has already been made for the z990 and is now backfitted to earlier hardware levels. z/VM has released two APARs in support of these changes at the z/VM 4.3.0 level (these were already included in the z/VM 4.4.0 base): VM63308 - PORTNAME relief for z/VM Guest LAN PQ73878 - VM TCP/IP exploitation of PORTNAME relief If you are using real OSA-Express devices in QDIO mode and have the hardware update applied, the PORTNAME is no longer required when configuring OSD devices. For compatibility, OSA-Express will permit activation with or without a PORTNAME. For the z/VM Guest LAN environment with VM63308 applied, the portname specification is also optional. Prior to this change, if you were sharing an OSA-Express, you needed to configure matching names for all shared devices. If a mismatch occurred, activation would fail. Now you can omit the portname. The "June 2003" Linux distribution also contains support for portname relief. The portname is still required for z/OS. Alan Altmark Senior Managing z/VM and Linux Consultant Lab Services System z Delivery Practice IBM Systems & Technology Group ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/