I don't know a thing about the Cisco switch, but I have 3 LPARs, 1 z/VM and 2 z/OS, sharing the same OSA Express-3 port. Since they are on the same port they are obviously on the same subnet.
On Tue, Jun 1, 2010 at 3:48 PM, Harder, Pieter < [email protected]> wrote: > I don't know about z10 (don't have one), but we run with two OSA 1000BaseT > as a failover pair shared between two z/OS and one z/VM/IFL lpars. The > outside is one /24 network and we gave out individual host addresses and use > a VSWITCH with two RDEVs on the z/VM side as well. The OSAs keep track of > who is where and we never had a problem with this setup. > > Best regards, > Pieter Harder > > ________________________________________ > Van: Linux on 390 Port [[email protected]] namens Tom Burkholder [ > [email protected]] > Verzonden: dinsdag 1 juni 2010 21:19 > Aan: [email protected] > Onderwerp: z/VM and z/OS sharing OSAs? > > z/VMers, > > My disclaimer is I'm not a networking engineer but I have a zVM and > networking question. > > I can provide more details, etc, but is anybody running z/VM and z/OS lpars > on the same z10 and "SHR"ing the OSAs? We originally setup the z/VM > proof-of-concept with VSWITCH but a single OSA to a CISCO switch. Other > than a potential single point of failure, no problem, things work well. We > have no spare OSAs (and would rather not purchase) but on the same z10 we > have a test z/OS lpar with two (2) OSAs being used connected to two other > CISCO switches (interconnected to each other for z/OS, but not to the > current CISCO switch with the VSWITCH). > > If anybody is sharing OSA's with z/VM and z/OS lpars I'd be interested in > getting some more information or ideas if possible. One of my biggest > concern is being able to keep the same 192.168.xxx.yyy currently being used > by z/VM on the single OSA onto the other OSAs/Switches if possible. > > Kind of a high-level diagram of what we got: > zVMa lpar chpid 09 -------- CISCO switch XXXXXX using 192.168.xxx.yyy > addresses. > zOSa lpar chpid 05 ------- CISCO switch ZZZZZ-a\ > zOSa lpar chpid 08 -------- CISCO switch ZZZZZ-b/ > > I'd like to SHR chpids 05/08, not screw up existing zOSa, be able to > configure z/VM with the same 192.168.xxx.yyy addresses and update > VSWITCH/controllers to use active/standby on chipds 05/08 (and free up chpid > 09 OSA). > > I found the following pdf to be a good source, but I need some more > information or help from the network side (e.g. can we share and keep the > same 192.168.xxx.yyy subnet) > http://linuxvm.org/present/misc/vswitch.pdf > > > Thanks in advance for any help, assistance, or ideas, > Tom Burkholder > > Brabant Water N.V. > Postbus 1068 > 5200 BC 's-Hertogenbosch > http://www.brabantwater.nl > Handelsregister: 16005077 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > -- Mark Pace Mainline Information Systems 1700 Summit Lake Drive Tallahassee, FL. 32317 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
