HP XC System 3.x Software - Manual (Page 27)

HP also recommends that you install the HPCPI or Xtools software when the system is idle to
minimize the effects of the installation procedure on other computing tasks. You can use the
SLURM scontrol command with the State=drain parameter to enable existing jobs to
complete on a node and prevent new jobs from starting.
Installing HPCPI or Xtools on Systems with Existing Versions
If you are installing HPCPI or Xtools on a system that already has a version of the software
installed, do not update the version; that is, do not use the rpm -U option. Instead, you must
use the rpm -e command to remove the previous version before installing the new version.
Installing the Software on Standalone Systems
To install the HPCPI and Xtools packages on a standalone system, follow these steps:
1. Log in as superuser.
2. If previous versions of the packages are already installed on the system, use rpm -e to
remove them:
% rpm -e package_file package_file...
IMPORTANT: Do not use the rpm -U command to update previous versions of the packages.
3. Use rpm to install the packages as follows:
% rpm -ivh package_file package_file...
For example:
% rpm -ivh hpcpi-0.6.6-rh4.ia64.rpm \
xtools-common-0.6.6-rh4.ia64.rpm \
xtools-clients-0.6.6-rh4.ia64.rpm
xtools-xc_clients-0.6.6-rh4.ia64.rpm
Installing the Software on HP XC Clusters
You can use standard HP XC Image Replication and Distribution Environment procedures to
install the HPCPI and Xtools packages on HP XC nodes. This section describes three methods
to install the HPCPI and Xtools software on HP XC cluster nodes; the first two methods are
standard procedures described in HP XC System Software: Administration Guide. The methods are
as follows:
• Use the full imaging installation procedure to create a golden image and propagate that
image. This installation procedure is recommended by the HP XC documentation. The
disadvantages of using this procedure are as follows:
— You cannot install software on the clients until you have created the golden image on
the head node.
— You must reimage and reboot the client nodes.
• Use the HP XC Image Replication and Distribution Environment to create a golden image,
but use cexec to manually run si_updateclient and other commands on the client
nodes. This installation procedure is described in the HP XC documentation. The advantage
of this method is that you do not need to reimage and reboot the client nodes. The
disadvantages of using this procedure are as follows:
— You cannot install software on the clients until you have created the golden image on
the head node.
— You must manually run commands that would be executed automatically by RPM.
• Use the cexec command to run the RPM utility on the client nodes, and create the golden
image after the clients have been updated. The advantages of using this procedure are as
follows:
Installing the Software 27