HP XC System Software Installation Guide Version 3.1

1. Begin this procedure as the root user on the head node.
2. Use the scontrol command to ensure that all jobs are drained from nodes n1 through n5:
# scontrol update NodeName=n[1-5] State=DRAIN Reason="system shutdown"
3. Prepare all client nodes to network boot rather than boot from local disk:
# setnode --resync --all
4. Cycle power to the specified nodes to automatically start the reimaging operation:
# stopsys n[1-5]
# startsys --image_and_boot n[1-5]
All nodes reboot automatically when the installation is finished.
5. Run the transfer_to_avail command to shut down all HP XC services and IP aliases that will
be managed by an availability tool. After shutting down these services and IP aliases, the
transfer_to_avail command starts each availability tool. Then, the availability tool starts up the
services and IP aliases it is managing.
6. Reset the job state on nodes n1 through n5:
# scontrol update NodeName=n[1-5] State=IDLE
6.2 Reinstall Systems with HP Integrity Hardware Models 111