You typically want at least 2 OSA cards (not 2 ports on the same card - 2 physical cards). Cable them to different real switches out in your network.
Yes, VIPA or VSWITCH w/failover would be required. Probably simplist to do a layer 3 vswitch (layer 2 the VM stacks don't support and you can't run one OSA as both L2 and L3) and just ask them to cable up that other OSA to a different switch and then set up the vswitch to have multiple adapters. It will be failover only, not load balancing (which you'd get with VIPA) , yet... (it's coming). Marcy Cortes "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Shimon Lebowitz Sent: Thursday, June 07, 2007 3:47 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: [IBMVM] OSA crash > But... We have multiple OSA per stack so no one missed a beat. We > only got clued in when the network monitoring guys started asking > about the red stuff on their screen. Do you not have more than 1? I do have another OSA available, but I do not know how one sets it up so as to <not miss a beat>. Does this require a VSWITCH? Does it require VIPA? These are things I do not grok.... Am I correct that it requires that I go to the network people and get another IP on the main lan for each stack? Any helpful hints, examples, or docs available? Thanks! Shimon (who should be asleep at this hour!)
