Originally posted by: brentc

We have a single HMC with attached p5 (vio environment). Whoever set this up originally did not anticipate the addition of a second frame (p7) so the HMC1 port of the p5 server is attached directly to an ethernet port on the HMC. I obviously need to move those connections to a switch and create a private network but am unsure of what pitfalls there may be in doing this. The p5 is a production system so minimal or no downtime would be the preference. The p7 is a new server. I am not concerned about the new network setup...just the impact on the existing HMC lpars and their profiles. Any and all thoughts appreciated.
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Originally posted by: BobDyne

Hi

you just need to create a private network on a switch. Connect the hmc and p5 box to the switch and ensure they are still talking. Then add the p7 hmc connection to the network, it should be discovered by the hmc. No downtime is needed.
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Originally posted by: dukessd

Almost as easy as that, first you need to ensure your HMC code level is high enough to support your new p7 system.

http://www14.software.ibm.com/webapp/set2/sas/f/power5cm/supportedcodep7.html
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Originally posted by: brentc

Thanks. Code levels are fine. The HMC was first upgraded to 7R7.3 to accommodate the p7 and the existing microcode on the p5 is still supported on the HMC.
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Originally posted by: brentc

I thought that was all that was needed but appreciate the confirmation. I will be doing the change on the 9th and will post the results. Thanks.
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