Re: [gpfsug-discuss] mm'add|del'node with ccr enabled

2017-12-09 Thread Grunenberg, Renar 
Hallo Eric,
our experiences are add and delete new/old nodes is working only if this node 
is no quorum node in an ccr cluster, no problem. There are no mmshutdown steps 
necessary. We are on 4.2.3.6. I think this is already available since >4.2. If 
you want to add a new quorum node, than you must put this node first as a 
client and after that you can change this node to a quorum node.


Renar Grunenberg
Abteilung Informatik – Betrieb

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Von: gpfsug-discuss-boun...@spectrumscale.org 
[mailto:gpfsug-discuss-boun...@spectrumscale.org] Im Auftrag von J. Eric 
Wonderley
Gesendet: Freitag, 8. Dezember 2017 17:10
An: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org>
Betreff: [gpfsug-discuss] mm'add|del'node with ccr enabled

Hello:

If I recall correctly this does not work...correct?  I think the last time I 
attempted this was gpfs version <=4.1.  I think I attempted to add a quorum 
node.

The process was that I remember doing was mmshutdown -a, mmchcluster 
--ccr-disable, mmaddnode yadayada, mmchcluster --ccr-enable, mmstartup.

I think with ccr disabled mmaddnode can be run with gpfs up.  We would like to 
run with ccr enabled but it does make adding/removing nodes unpleasant.

Would this be required of a non-quorum node?

Any changes concerning this with gpfs version >=4.2?
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Re: [gpfsug-discuss] mm'add|del'node with ccr enabled

2017-12-08 Thread Oesterlin, Robert 
Yes, there were issues with this in pre 4.2? versions of GPFS. My clusters are 
at 4.2.2 with CCR (working my way to 4.2.3-5) and I’ve been using this process 
on my quorum nodes when I need to update them:

mmchnode –quorum -N new-node (designate a new quorum node, going from 3 to 4)
mmchnode –nonquorum -N old-node (remove existing node to be updated)

I can then shutdown “old-node” and then when I bring it back up, I reverse the 
process. I’ve had no issues using this process.


Bob Oesterlin
Sr Principal Storage Engineer, Nuance

From: <gpfsug-discuss-boun...@spectrumscale.org> on behalf of "J. Eric 
Wonderley" <eric.wonder...@vt.edu>
Reply-To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org>
Date: Friday, December 8, 2017 at 10:11 AM
To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org>
Subject: [EXTERNAL] [gpfsug-discuss] mm'add|del'node with ccr enabled

Hello:

If I recall correctly this does not work...correct?  I think the last time I 
attempted this was gpfs version <=4.1.  I think I attempted to add a quorum 
node.

The process was that I remember doing was mmshutdown -a, mmchcluster 
--ccr-disable, mmaddnode yadayada, mmchcluster --ccr-enable, mmstartup.

I think with ccr disabled mmaddnode can be run with gpfs up.  We would like to 
run with ccr enabled but it does make adding/removing nodes unpleasant.

Would this be required of a non-quorum node?

Any changes concerning this with gpfs version >=4.2?
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gpfsug-discuss at spectrumscale.org
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[gpfsug-discuss] mm'add|del'node with ccr enabled

2017-12-08 Thread J. Eric Wonderley 
Hello:

If I recall correctly this does not work...correct?  I think the last time
I attempted this was gpfs version <=4.1.  I think I attempted to add a
quorum node.

The process was that I remember doing was mmshutdown -a, mmchcluster
--ccr-disable, mmaddnode yadayada, mmchcluster --ccr-enable, mmstartup.

I think with ccr disabled mmaddnode can be run with gpfs up.  We would like
to run with ccr enabled but it does make adding/removing nodes unpleasant.

Would this be required of a non-quorum node?

Any changes concerning this with gpfs version >=4.2?
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gpfsug-discuss at spectrumscale.org
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