HP XC System Software Installation Guide Version 3.2

4. If you are using LSF, make sure that you save the LSF /hptc_cluster/lsf/conf/
configuration directory. Also save any other known LSF customizations, such as elim
scripts.
5. If the system is using HP StorageWorks Scalable File Share, see the SFS documentation to
determine if you are required to update the SFS server and client software for the new HP
XC release. If an SFS software update is required, you perform that task in “Task 6: Install
Patches and Reinstall Additional Software” (page 124) .
6. If the system is configured with an InfiniBand interconnect, upgrade the HCA cards on all
nodes now.
7. Determine whether to configure improved availability of services. Improved availability of
services is a new feature introduced in HP XC System Software Version 3.1.
See “Task 9: Plan a Service Availability Strategy” (page 28), which describes what improved
availability offers, how it is achieved, the supported availability tools, and the services that
are eligible for improved availability.
8. Read the Version 3.2 HP XC System Software Release Notes before beginning the upgrade
procedure. The release notes describe any last-minute changes to software, firmware, or
hardware that might affect the upgrade process.
The HP XC System Software Release Notes for each HP XC software release are available online:
http://www.docs.hp.com/en/linuxhpc.html
Proceed to “Task 2: Prepare the System State”.
5.3 Task 2: Prepare the System State
On the head node, follow this procedure to ensure that the system is in the appropriate state for
the upgrade:
1. Set all nodes to network boot so that all client nodes can be reimaged after the head node is
updated:
# setnode --resync --all
2. Stop all running jobs. See the HP XC System Software User's Guide for specific instructions.
3. Shut down all nodes except the head node:
# stopsys
4. Do the following if the /hptc_cluster file system is mounted over an HP StorageWorks
Scalable File Share server; otherwise, proceed to step 5.
a. Determine the processes that are using /hptc_cluster:
# fuser -vm /hptc_cluster
b. Stop the processes. Typically, the processes using /hptc_cluster correlate to the
cmfd, nagios, lsf, slurm, and syslog-ng services. Use the following syntax to stop
those services:
# service service_name stop
c. Run the fuser command again to make sure no processes are using /hptc_cluster:
# fuser -vm /hptc_cluster
d. Proceed to step 5 when you have verified that no processes are using /hptc_cluster.
5. Stop the SFS service if HP SFS is in use:
# service sfs stop
Proceed to “Task 3: Install the Upgrade RPM and Prepare the System.”
122 Upgrading an HP XC System