[Sena]

Hello again;

We are currently using HACMP version 5.4.0.1 on some of our clustered servers and trying to implement virtualization over HACMP. I have searching for documentation about that but couldn't find anything helpful exept this one: HACMP 5.3, Dynamic LPAR, and Virtualization (sorry couldnt put the url here)

As you see this is for version 5.3 non for 5.4. Although it provides some details of the idea; I need more information in order to take some action.

Can you suggest some documents? Also any tiny bit of advise will be appraciated.

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Sena

[kerst1]

Hi,
I am actually in the middle of setting up some HACMP clusters as well. I am running HACMP 5.4.1. The LPARs are AIX 5.3 TL07 SP03. And we are running VIOS 1.5.1.1-FP10 (or whatever the latest version works out to). You need 657/TCP & 657/UDP open bi-directionally from each LPAR to the HMC. The biggest thing is each LPAR must have a unique IP address, so you can't use the service IP for DLPAR. Each LPAR must be able to SSH to the HMC and ping the HMC as well. Sadly, HACMP is hard coded to use the hscroot ID. You need to setup your public keys and exchange them with your HMC. I have been adding the logssh option to the authorized_keys2 file on the HMC to prevent TTY access. Run 'lspartition -dlpar' on the HMC to verify each LPAR shows up and is active. Then within smitty hacmp, you can configure HACMP to run DLPAR. smitty hacmp // extended configuration // hacmp extended resources configuration // configure hacmp application servers // configure hacmp for dynamic lpar and cuod resources

IBM Cluster information center

[kerst1]

Hi,
I have been playing more with my DLPAR/HACMP setup. I am not using HACMP for DLPAR operations anymore. Instead, I am just running the chhwres commands in my HACMP start and stop scripts. HACMP can only do whole processors. It doesn't handle micro-partitioning. And, by just running the chhwres commands yourself, you can easily setup a separate ID that can only run chhwres commands. This adds another layer of security in my opinion.

[Sena]

Thank you for sharing kerst1; I agree about implementing HMC commands in HACMP start-stop scripts is the best way of using DLPAR operations. It has more flexibilty and ease.

Also for the people who'll look here about this topic; I'd like to share that if you are using HMC v7 you should use at least HACMP 5.4.1.0. We have realized that version 5.4.0.1 does not support HMC version 7.

Cheers
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Sena