> We have a LINUX running in LPAR mode with an OSA--E as the > only network > interface. > We looking into bringing zVM to run it in the LPAR and, then, run > multiple LINUX images underneath it. > I have a couple of question, being new to VM and OSA-E; > 1) What's the best way to set up the network for the LINUX > and VM images? > (I am assuming that letting zVM "own" the NIC and passing > packets would > be > better than each images owning a piece of the OSA-E, if this is > incorrect, please let me know)
Yes. > a) As a "spoke" as illustrated in the Redpaper "Building > Linux Systems > under IBM VM" by Simon Williams using proxyarp (the example uses an > OSA-2, but I think proxyarp will work with an OSA-E) > b) using a guest LAN Use a guest LAN if your version of VM and Linux will support it. It makes the networking MUCH simpler. > > 2) During migration to the best way; Can my current LINUX > image share the > OSA-E with zVM? > And, if yes, how? I can't seem to find an example of > sharing a OSA-E > in the books. > I have seen the warnings about the need for both OS to specify > portname. But, > for example, if LINUX is using address x00,x01,x02; > does zVM need to > specify > a different address on the DEVICE statement. Dedicate the adapter to VM. OSA sharing is complicated and hard to set up. -- db
