I think you have a bit of a misunderstanding of how OSA ports work. It turns out that each port on a card has its own computer and its own microcode, which is independent of any other ports on that same card. I wrote about how OSA microcode application works last month, in the following post:
http://bama.ua.edu/cgi-bin/wa?A2=ind0904&L=ibm-main&P=R105&I=1&X=- What happens is your CE installs the updated microcode onto your machine. The code update is then applied to OSA ports the next time each port is offline. If you have configured your machine so that your workload nondisruptively operates across multiple OSA ports, then you can take each OSA port offline and then back online, one OSA port at a time, to complete the implementation of the microcode update for each port. In the above referenced port, I also explained a way to tell from the HMC or SE exactly which OSA CHPIDs have microcode pending for them. Putting OSA microcode on to OSA ports, one port at a time, is absolutely the intended method for deploying such updates to your machine, and is 100 % supported by IBM. Brian On Wed, 13 May 2009 15:44:07 +0200, Maarten Slegtenhorst wrote: >Dear list, > >Forgive me if my terminology is not entirely correct, since I'm not a >mainframe configurator. > >At the moment we do a power-on reset and IPL's of the hosts to activate >new MCL's for the OSA-cards. >According to IBM, applying and activating MCL's can be done without >disruption. > >All our hosts have at least two OSA-ports, each port on an other >OSA-card ( OSA Express2 ). >I can deactivate the CHPID of an OSA-port on all LPAR's that use that >port, and then put the PCHID in service mode. > >Network traffic will then continue, without disruption, over the >remaining OSA-port. > >After applying the new MCL, I can activate the PCHID, CHPID's and >ofcourse the TCP/IP-port. >Then I can do the same procedure for the remaining OSA-port > >Halfway during this procedure, there is a moment when the two OSA-ports >have different microcode levels. > >Did anyone ever experience problems, using different MCL's? >Is there another way to activate the MCL's without disrupting the hosts? > > > >-- >Maarten Slegtenhorst > ---------------------------------------------------------------------- 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
