It's also the case that the recommended ESS config is to be its own cluster, remote mounted by any compute nodes which access the storage.
Lyle
----- Original message -----
From: "Marc A Kaplan" <[email protected]>
Sent by: [email protected]
To: gpfsug main discussion list <[email protected]>
Cc:
Subject: [EXTERNAL] Re: [gpfsug-discuss] How to join GNR nodes to a non-GNR cluster
Date: Tue, Dec 3, 2019 2:15 PM
IF you have everything properly licensed and then you reconfigure... It may work okay... But then you may come up short if you ask for IBM support or service...
So depending how much support you need or desire...
Or take the easier and supported path... And probably accomplish most of what you need -- let each cluster be and remote mount onto clients which could be on any connected cluster.Jonathan Buzzard ---12/03/2019 10:04:46 AM---On 03/12/2019 14:54, Olaf Weiser wrote: > Hallo
From: Jonathan Buzzard <[email protected]>
To: "[email protected]" <[email protected]>
Date: 12/03/2019 10:04 AM
Subject: [EXTERNAL] Re: [gpfsug-discuss] How to join GNR nodes to a non-GNR cluster
Sent by: [email protected]
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
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