[gpfsug-discuss] Question regarding quorum nodes

Danny Lang danny.lang at crick.ac.uk
Thu Sep 7 14:39:00 BST 2023


Hi Tina,

The command you're looking for is:


mmchnode

https://www.ibm.com/docs/en/storage-scale/4.2.0?topic=commands-mmchnode-command

This will allow you to add quorum nodes and to remove.

------

I would advise checking everything prior to running commands. 🙂

Thanks
Danny

________________________________
From: gpfsug-discuss <gpfsug-discuss-bounces at gpfsug.org> on behalf of Tina Friedrich <tina.friedrich at it.ox.ac.uk>
Sent: 07 September 2023 2:28 PM
To: gpfsug-discuss at gpfsug.org <gpfsug-discuss at gpfsug.org>
Cc: theteam at arc.ox.ac.uk <theteam at arc.ox.ac.uk>
Subject: [gpfsug-discuss] Question regarding quorum nodes


External Sender: Use caution.


Hello All,

I hope someone can answer this quickly!

We have - it seems - just lost one of our NSDs.The other took over as it
should - but unfortunately, the protocol nodes (i.e. I have a number of
nodes which now have stale file handles. (The file system is accessible
on the remaining NSD server and a number of other clients.)

Unfortunately, in the 'home' cluster - the one that ones the disks - I
only have, five servers; three of which are quorum nodes, and of course
the failed NSD server is one of them.

The question is - can I add quorum nodes with one node down, and can I
remove quorum functionality from a failed node?

Tina

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