I frequently change quorum on the fly on both our 4.x and 5.0 clusters during
upgrades/maintenance.
You have sanity in the CCR to start with? (mmccr query, lsnodes, etc,etc)
Anything useful in the logs or if you drop debug on it? ('export DEBUG=1'and
then re-run command)
Ed Wahl
OSC
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Jonathan Buzzard
Sent: Thursday, December 9, 2021 7:36 AM
To: '[email protected]' <[email protected]>
Subject: [gpfsug-discuss] Adding a quorum node
I am looking to replace the quorum node in our cluster. The RAID card in the
server we are currently using is a casualty of the RHEL8 SAS card purge :-(
I have a "new" dual core server that is fully supported by RHEL8. After some
toing and throwing with IBM they agreed a Pentium G6400 is 70PVU a core and two
cores :-) That said it is currently running RHEL7 because that's what the
DSS-G nodes are running. The upgrade to RHEL8 is planned for next year.
Anyway I have added it into the GPFS cluster all well and good and GPFS is
mounted just fine. However when I ran the command to make it a quorum node I
got the following error (sanitized to remove actual DNS names and IP addresses
initialize (113, '<fqdn-new>', ('<IP address>', 1191)) failed (err 79) server
initialization failed (err 79)
mmchnode: Unexpected error from chnodes -n
1=<fqdn1>:1191,2<fqdn2>:1191,3=<fqdn3>:1191,113=<fqdn-new>:1191 -f 1 -P
1191 . Return code: 149
mmchnode: Unable to change the CCR quorum node configuration.
mmchnode: Command failed. Examine previous error messages to determine cause.
fqdn-new is the new node and fqdn1/2/3 are the existing quorum nodes. I want to
remove fqdn3 in due course.
Anyone any idea what is going on? I thought you could change the quorum nodes
on the fly?
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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