HP XC System Software Installation Guide Version 4.0

# setnode --resync n[1-5]
4. Reboot nodes n1 through n5:
# stopsys n[1-5]
# startsys --image_and_boot n[1-5]
The nodes automatically reboot when the reimaging is complete.
5. If SLURM is configured, reset the job state on nodes n1 through n5:
# scontrol update NodeName=n[1-5] State=IDLE
10.2 Reinstalling HP XC when the Hardware Configuration Contains HP
Integrity Hardware Models
This section describes the following tasks:
• “Reinstalling All Nodes” (page 156)
• “Reinstalling Selected Nodes” (page 156)
NOTE: If client nodes were previously configured with software RAID and you want to remove
the RAID configuration during the reinstallation, see the HP XC System Software Administration
Guide for instructions on how to remove software RAID.
10.2.1 Reinstalling All Nodes
Follow this procedure to reinstall HP XC System Software Version 4.0 on systems comprised of
HP Integrity hardware models.
A reinstallation requires that all nodes are set to network boot. The setnode --resync
command automatically sets all nodes to network boot, however, the setnode --resync
command requires that Netboot is defined as the common user-specified label for the network
boot option that is configured in the EFI shell environment for each node. The procedure contained
here describes how to set a consistent user-specified label for the network boot option if it is not
set to a consistent value of Netboot for all nodes.
Follow this procedure to reinstall an entire system with HP XC System Software Version 4.0:
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 all client nodes, where
nodelist represents the entire set of nodes (for example, n[1–64]):
# scontrol update NodeName=nodelist State=DRAIN Reason="system shutdown"
3. Prepare all client nodes to network boot rather than boot from local disk:
# setnode --resync --all
4. Shut down all client nodes:
# stopsys
5. Insert the HP XC System Software Version 4.0 DVD distribution media into the DVD drive
on the head node.
6. Reboot the head node to start the Kickstart installation:
# reboot
7. Follow the instructions in this document, beginning with Chapter 2 (page 35), to complete
the installation process.
10.2.2 Reinstalling Selected Nodes
Follow this procedure to prepare one or more HP Integrity client nodes to be automatically
reinstalled from the latest golden image on the image server. This procedure sets the specified
nodes to network boot from the DHCP server and automatically starts a reinstallation operation
156 Reinstalling HP XC System Software Version 4.0