HP XC System Software Release Notes for Version 3.1

To work around this issue, use the text editor of your choice to edit the /etc/hosts file and
remove the trailing spaces on the IRxNxx lines
5.6 Benign Messages Seen During cluster_config Processing
This note applies only if the hardware configuration contains HP server blades and enclosures.
During cluster_config processing, if you see any messages stating "Warning - cannot map
[node] to switch or enclosure" where node is the head node (typically node 0), you can safely
ignore the message.
5.7 Processing Time for cluster_config Might Take Longer on a Head
Node With Improved Availability
The cluster_config utility processing time can take approximately ten minutes longer if it
is run on a head node that is configured for improved availability with Serviceguard when the
remaining nodes of the cluster are up and running.
After the entire system has been imaged and booted, you might need to re-run the
cluster_config procedure to modify the node configuration. If the other node in the availability
set with the head node is up and running, the Serviceguard daemons attempt to establish
Serviceguard related communication with the node when they are restarted. Because the other
node in the availability set is not actively participating in a Serviceguard cluster, it will not
respond to the Serviceguard communication.
The Serviceguard software on the head node retries this communication until the communication
times out. On a system running with the default Serviceguard availability configuration, the
timeout is approximately ten minutes.
5.8 Notes That Apply After You Invoke the cluster_config Utility
Read the notes in this section after you invoke the cluster_config utility.
5.8.1 Update the LSF Scheduler After Running the spconfig Command
The SLURM spconfig command updates the available resources that are known to SLURM.
When this command is run, SLURM reports more accurate information. The HP XC System
Software Installation Guide instructs you to run spconfig when you perform SLURM
postconfiguration tasks.
The LSF batch scheduler integrated with SLURM relies on SLURM to gather resource information.
When you run the spconfig command to update resource information in SLURM, you must
also update LSF.
Enter the following command to ensure that LSF is updated with the current resource information
reported by SLURM so that its scheduling decisions fully use all cluster resources:
# badmin reconfig
Checking configuration files ...
No errors found.
Reconfiguration initiated
5.8.2 Hardware Configurations with Mixed Opteron and Xeon Hardware and
InfiniBand Require an Imaging Override
For the InfiniBand interconnect to function properly, you must configure an imaging override
for hardware configurations with mixed architecture Opteron and Xeon architectures.
5.6 Benign Messages Seen During cluster_config Processing 43