<html><body><p><font size="2">Hi, </font><br><br><font size="2">I need to remove some nodes from my existing pacemaker cluster which are currently unbootable / unreachable. </font><br><br><font size="2">Referenced </font><a href="https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/High_Availability_Add-On_Reference/s1-clusternodemanage-HAAR.html#s2-noderemove-HAAR"><font size="2">https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/High_Availability_Add-On_Reference/s1-clusternodemanage-HAAR.html#s2-noderemove-HAAR</font></a><br><br><b><font size="4">4.4.4. Removing Cluster Nodes</font></b><br>The following command shuts down the specified node and removes it from the cluster configuration file, <tt>corosync.conf</tt>, on all of the other nodes in the cluster. For information on removing all information about the cluster from the cluster nodes entirely, thereby destroying the cluster permanently, refer to <a href="https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/High_Availability_Add-On_Reference/s1-clusterremove-HAAR.html#s2-noderemove-HAAR"><u><font color="#0000FF">Section 4.6, “Removing the Cluster Configuration”</font></u></a>. <br><tt>pcs cluster node remove </tt><tt><i>node</i></tt><br><br><font size="2">I ran the command with the cluster active on 3 of the 5 available cluster nodes (with quorum). The command fails with: </font><br><br><font size="2">[root@zs90KP VD]# date;</font><b><font size="2">pcs cluster node remove zs93kjpcs1</font></b><br><font size="2">Thu Apr 13 13:40:59 EDT 2017</font><br><b><font size="2" color="#FF0000">Error: pcsd is not running on zs93kjpcs1</font></b><br><br><br><font size="2">The node was not removed:</font><br><br><font size="2">[root@zs90KP VD]# pcs status |less</font><br><font size="2">Cluster name: test_cluster_2</font><br><font size="2">Last updated: Thu Apr 13 14:08:15 2017 Last change: Wed Apr 12 16:40:26 2017 by root via cibadmin on zs93KLpcs1</font><br><font size="2">Stack: corosync</font><br><font size="2">Current DC: zs90kppcs1 (version 1.1.13-10.el7_2.ibm.1-44eb2dd) - partition with quorum</font><br><font size="2">45 nodes and 180 resources configured</font><br><br><font size="2">Node zs95KLpcs1: UNCLEAN (offline)</font><br><font size="2">Online: [ zs90kppcs1 zs93KLpcs1 zs95kjpcs1 ]</font><br><b><font size="2" color="#FF0000">OFFLINE: [ zs93kjpcs1 ]</font></b><br><br><br><font size="2">Is there a way to force remove a node that's no longer bootable? If not, what's the procedure for removing a rogue cluster node? </font><br><br><font size="2">Thank you... <br><br>Scott Greenlese ... KVM on System Z - Solutions Test, IBM Poughkeepsie, N.Y.<br> INTERNET: swgreenl@us.ibm.com <br><br></font><BR>
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