Compute Node Fields

Use the following commands to view various compute node fields (example commands for node n0):

• View the full list of fields using long-form arguments:

  scyld-nodectl -i n0 list --long-long
  

• View the full list of fields using shorthand arguments:

  scyld-nodectl -i n0 ls -L
  

• View the abbreviated list of fields using long-form arguments:

  scyld-nodectl -i n0 list --long
  

• View the abbreviated list of fields using shorthand arguments:

  scyld-nodectl -i n0 ls -l
  

The type field is currently set to "compute", although future updates to ICE ClusterWare™ may add additional values.

The groups and attributes fields are described in more detail in Node Attributes and in the commands scyld-nodectl and scyld-attribctl.

Prior to a node booting, the system informs the DHCP server of MAC-to-IP address mappings for nodes known to the system. Changes to node indices, IP, or MAC addresses may affect these mappings and cause updates to be sent to the DHCP server within a few seconds. When a node makes a DHCP request, the DHCP server maps that node's MAC address to the correct IP and provides additional options to the booting node, including where to find the correct boot files. These boot files are linked in boot configurations stored in the database.