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 ====Node Power Control====
-Each of the three worker nodes (seven nodes on the double-wide Limulus) can be powered up or down from the login node. This feature is generally not used in the **Data Analytics** systems because most of the daemons must be constantly running. In particular, the [[Hadoop Distributed File System|HDFS Management]] (HDFS) runs on all worker nodes.
+Each of the three worker nodes (seven nodes on the double-wide Limulus) can be powered up or down from the login node. This feature is generally not used in the **Data Analytics** systems because most of the daemons must be constantly running. In particular, the [[HDFS Management|Hadoop Distributed File System]] (HDFS) runs on all worker nodes.
 This feature can be useful for HPC based Limulus systems. Users may turn nodes of and on as needed using the ''node-power{on/off}'' scripts or the ''NPstat'' utility. In addition, node power control can be fully managed by the Slurm Workload Manager. In this scenario, nodes that are not begin used are turned off and then turned on when jobs are submitted to the queue. See [[ Slurm Workload Manager#Configuring Slurm for Automatic Power Control|Configuring Slurm for Automatic Power Control]]

Systems Manual