HP XC System Software Installation Guide Version 4.0

Multicast imaging uses the udpcast open source package, and the flamethrower functionality of
SystemImager. A series of udp-sender daemons are run on the image server, and each client
node runs a series of udp-receiver daemons during the imaging operation. The udp-sender
daemons are managed by the startsys command. The startsys command starts these
daemons when the --image_only or --image_and_boot options are entered on the command
line and then shuts these daemons down after the imaging operation is complete. Therefore, you
must use startsys when performing a full installation through the imaging operation.
Startup Procedure
Follow this procedure to start the system and propagate the golden image to all nodes; the
command-line options depend on the number of nodes in the system:
1. Determine whether you want to override files delivered in the golden image. This step is
optional, and typically during an initial system installation and configuration, it is not
necessary. However, be aware that you can modify the files delivered in the golden image,
and the HP XC System Software Administration Guide describes how to do so.
NOTE: If the hardware configuration is not homogenous (that is, not all nodes are the
same hardware model) and contains one or more HP ProLiant DL145 servers and the servers
are using InfiniBand PCI-X cards, add the additional kernel boot option noapic to the
grub.conf file as an override to the system image.
2. Make sure the XC.lic license key file is located in the following directory:
# ls /opt/hptc/etc/license
CAUTION: You cannot continue if the license key file is not present in this directory. See
Section 1.7 (page 25) and Section 5.1 (page 77) for more information about obtaining and
positioning the license key file if you have not already done so.
3. Ensure that the power is off on all nodes except the head node.
4. Use the startsys command to turn on power to all nodes, image the nodes, and boot the
nodes.
The command-line options for the initial system image and boot are listed in Table 6-4 and
depend on the number of nodes, whether or not the hardware configuration contains HP
server blades and enclosures, and the size of the disks.
118 Configuring and Imaging the System