To shutdown all the compute nodes:
cluster-fork “shutdown -h now”
or
rocks run host “shutdown -h now”
To shutdown frontend:
shutdown -h now
To reboot after shutdown
rocks run host compute “/sbin/shutdown -r now”
reinstall nodes, how?
On a particular node (not on frontend)
/boot/kickstart/cluster-kickstart-pxe
On the frontend
rocks set host boot action=install compute-0-0