How to modify the /etc/llttab 'exclude' directive
Article ID: 100001253
Updated On:
Description
If the existing VCS (Veritas Cluster Server) nodes have the 'exclude' directive set, new nodes are prevented from joining the cluster. This behavior can be changed by modifying the value within the /etc/llttab file, and rebooting all nodes in the cluster.
Sample contents of the /etc/llttab file:
# cat /etc/llttab
set-node node1
set-cluster 300
link bge1 /dev/bge:1 - ether - -
link bge2 /dev/bge:2 - ether - -
link-lowpri bge0 /dev/bge:0 - ether - -
exclude 2-31
For the following example, assume that we are adding two new nodes to this cluster. The new node IDs are 2 and 3.
Resolution
Complete these steps to modify the exclude directive:
1. Use the lltconfig command to include the node IDs. This command needs to be run on all nodes in the existing cluster.
# lltconfig -i 2-3
2. This will have an immediate effect on the lltstat output. For the change to enable the new nodes to be added, restart all VCS modules -- with the exception of the llt daemon -- including gab, vxfen and had. If this configuration includes shared file systems, or shared volumes, restarting additional modules may be required.
More information can be found at:How to stop and start VCS, SFCFS and SFRAC (Cluster Server, Storage Foundation Cluster File System and Storage Foundation for Oracle RAC) for UNIX & Linux​
3. To make this change permanent, update the /etc/llttab file with the new exclude value, on all nodes in the existing cluster. It will take effect on the next reboot.
4. From the new, joining, node(s), modify the /etc/llttab file to match one of the of nodes in the existing cluster.
5. The change will become permanent when the llt module is unloaded, and reloaded, into the kernel -- or after a reboot of all of the nodes.
Issue/Introduction
How to modify the /etc/llttab 'exclude' directive.
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