[gpfsug-discuss] How to join GNR nodes to a non-GNR cluster

[Jonathan Buzzard]

On 03/12/2019 14:54, Olaf Weiser wrote:
> Hallo
> "merging" 2 different GPFS cluster into one .. is not possible ..
> for sure you can do "nested" mounts .. .but that's most likely not, what 
> you want to do ..
> 
> if you want to add a GL2 (or any other ESS) ..to an existing (other) 
> cluster... -  you can't preserve ESS's RG definitions...
> you need to create the RGs after adding the IO-nodes to the existing 
> cluster...
> 
> so if you got a new ESS.. (no data on it) .. simply unconfigure cluster 
> ..  .. add the nodes to your existing cluster.. and then start 
> configuring the RGs
> 

I was under the impression (from post by IBM employees on this list) 
that you are not allowed to mix GNR, ESS, DSS, classical GPFS, DDN GPFS 
etc. in the same cluster. Not a technical limitation but a licensing one.

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG