This is the reason when we put in our H50 we went with a third-party network device. I asked the business integrator who assisted us what his take was on it and here is his reply:
Rex - You are correct - what happened to them is exactly the reason you went with the external device. If any emulated I/O is in use, a reboot of the Support Element will probably take MVS down. If they had to unplug and replug the network cable connected to the ethernet card, they should have done everything possible to stop all activity on that card prior to unplugging the cable. I'm not sure if there is a foolproof procedure, but if I had to unplug the ethernet cable I would do the following in this sequence. Stop TCP/IP. Vary offline ALL emulated devices associated with that card. Vary the path to those devices offline. Config CHPID FC offline to this LPAR. When this is complete, you might be able to unplug the ethernet without taking down OS/2. If the cable work did not cause any OS/2 problems, reverse the above procedure to get the TCP/IP connection restored. As far as I know, there is nothing they could have done from an OS/2 perspective. I know of no way to stop device drivers or anything else that may be associated with the ethernet card. HTH Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Richard Pinion Sent: Wednesday, November 02, 2005 10:21 AM To: IBM-MAIN@BAMA.UA.EDU Subject: IBM 7060 H30 network cards We have an IBM 7060 H30 that has 4 network cards. One for OS/2, two for prodcution z/OS LPAR, and one for test z/OS LPAR. Last week we had to unplug and replug the production LPAR network cables from the H30. We did this twice. Both times the 7060's PC rebooted which as some of you might know kills the S/390 processor. We did not stop the TCP/IP stacks that were using the interface cards. Should we have stopped TCP/IP? Should we vary the even odd device addresses offline? Should we vary the even odd device address paths offline. Should something on the OS/2 side (emio device drivers) be stopped? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
