Use act_locate to identify a node
Most Advanced Clustering chassis are equipped with a large locater LED on the front that can be used to easily identify a node when it’s turned on. If you’re remotely attempting to notify a technician as to which compute node needs work, you can simply run the following command from your head node:
$ act_locate -n <hostname> on
When the node has been located, you can turn it back off by running:
$ act_locate -n <hostname> off
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