On Tuesday, 11/19/2002 at 09:10 CST, James Melin <[EMAIL PROTECTED]> wrote: > That helps if you understand OSA/SF - which I don't. What I want to be > able to prove to the people who control the network is that YES indeed, I > can have an LPAR share a port on an OSA card. The biggest thing preventing > my install of another Linux LPAR is another cable being strung to switch. > If I don't have to do that.....
Bottom line is that OSAs are shared just like any other device: Define unit addresses in the IOCP for the OSA chpid, some in one LPAR, some in another. Once shared, OSA/SF must be used to tell the card which IP addresses belong to which unit address pairs. (The great thing about OSA Express in QDIO mode is that the host does this for you - no OSA/SF required!) When sharing an OSA card, this biggest (IMNSHO) problem is deciding which unit address pair (and, by inference, which LPAR) gets to be primary/default. If "something" in the LPAR is acting as a router, then that "something" should be the primary/default in order to avoid dropped packets. Alan Altmark Sr. Software Engineer IBM z/VM Development
