Interacting with Compute Nodes

The primary tool for interacting with ICE ClusterWare™ nodes from the command line is scyld-nodectl. This tool is how an administrator would add a node, set or check configuration details of a node, see the basic node hardware, see basic status, cause a node to join or leave attribute groups, reboot or powerdown a node, or execute commands on the node.

In this section we will show a number of examples and discuss what information an administrator can both get and set through the scyld-nodectl tool, as well as reference other resources for further details.

Nodes are named by default in the form of nX, where X is a numeric zero-based index. More complicated clusters may benefit from more flexible naming schemes. See Node Names and Pools for details.