06-11-2019
Quote:
Originally Posted by
bakunin
To add to his problems: he has a HACMP cluster running and this will not recover itself from a "script error" like the one it has already run into. You need to use HACMP-recovery-procedures to get out of this state and this needs a sound understanding of how HACMP (=SystemMirror, =PowerHA) works. It is difficult to troubleshoot something as complex as a cluster over the internet and in fact it is bordering on criminal to have someone who is obviously way out of his league to administrate a system deemed valuable and mission-critical enough to warrant a (rather costly) HA-solution. This is like buying a Formula-One racing car and setting a 5-year-old behind the steering wheel.
bakunin
Yeah, the good news is depending on the other node the cluster should be up but unstable. And one can rebuild/reload and bring in a node to the cluster. Not a fun task by any means. That said, yes troubleshooting hacmp via forums would be a nightmare. I was hoping at the very least to help them get the system up enough to see what was going on.
@trevian3969:
Depending on the criticality of this system, and to parrot what bakunin said it very likely will be worth while to look at upgrading to something newer. If you have a good IBM rep, see if they can get you a discount on some AIX classes with purchase of new frames. The redbooks for HACMP, and AIX are also a wealth of knowledge. When I joined the sysadm team to work with AIX I knew next to nothing about it, other than it was COOL!. Still haven't been to an official class, but man pages, redbooks sites like this place here and other blogs of AIX have been indispensable to me. Sadly, I feel my coming into AIX may have been 10 years too late for all the hot sysadm stuff!
Feel free to post what questions you may have however. And I'll still try to help out as much as I can where I can, just keep in mind that in the end it's your environment. I don't know how your environment is setup. The OS is way out of date, and all that other fun stuff right? I figure if nothing else, bakunin smack me for being wrong! Hey, I still have a lot to learn!
Take care and good luck!
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LEARN ABOUT CENTOS
crm_node
PACEMAKER(8) System Administration Utilities PACEMAKER(8)
NAME
Pacemaker - Part of the Pacemaker cluster resource manager
SYNOPSIS
crm_node command [options]
DESCRIPTION
crm_node - Tool for displaying low-level node information
OPTIONS
-?, --help
This text
-$, --version
Version information
-V, --verbose
Increase debug output
-Q, --quiet
Essential output only
Stack:
-A, --openais
Only try connecting to an OpenAIS-based cluster
-H, --heartbeat
Only try connecting to a Heartbeat-based cluster
Commands:
-n, --name
Display the name used by the cluster for this node
-N, --name-for-id=value
Display the name used by the cluster for the node with the specified id
-e, --epoch
Display the epoch during which this node joined the cluster
-q, --quorum
Display a 1 if our partition has quorum, 0 if not
-l, --list
Display all known members (past and present) of this cluster (Not available for heartbeat clusters)
-p, --partition
Display the members of this partition
-i, --cluster-id
Display this node's cluster id
-R, --remove=value
(Advanced) Remove the (stopped) node with the specified name from Pacemaker's configuration and caches
In the case of Heartbeat, CMAN and Corosync 2.0, requires that the node has already been removed from the underlying cluster
Additional Options:
-f, --force
AUTHOR
Written by Andrew Beekhof
REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org
Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)