HP XC System Software Release Notes for Version 3.1

Use the procedure in the HP XC System Software Administration Guide, which describes how to
use file overrides to the golden image, to edit the /etc/modprobe.conf.vapi file to have
different values for nodes with an architecture that is different from the head node.
• For Opteron nodes in a hardware configuration with a Xeon head node, edit the
/etc/modprobe.conf.vapi file to set the value of the disable_msix parameter to 1,
similar to the following:
options mod_thh disable_msix=1
options mod_rhh disable_msix=1
• For Xeon nodes in a hardware configuration with an Opteron head node, edit the
/etc/modprobe.conf.vapi file to set thedisable_msix parameter to 0, similar to the
following:
options mod_thh disable_msix=0
options mod_rhh disable_msix=0
5.8.3 snmptrapd Might Not Start on Systems Discovered With the ic=AdminNet
Option
This release note only applies to systems that were discovered with the --ic=AdminNet option
and systems with hardware configurations that contain HP blade servers, Modular Cooling
System (MCS) devices, or both. You must apply this release note now as well as any time you
rerun the cluster_config utility.
If you specified the --ic=AdminNet option on the discover command line, the IP address
for the Administration Network and Interconnect Network devices are the same, causing duplicate
addresses to be written to the /etc/init.d/snmptrapd file. Duplicate addresses cause
snmptrapd to fail to start.
Resolve this issue by removing the duplicate address from the /etc/init.d/snmptrapd file
and restarting the snmptrapd service:
1. Use the text editor of your choice to open the /etc/init.d/snmptrapd file, look for the
OPTIONS= line, and remove the duplicate IP address (in this example 172.31.15.254) in the
last line:
# snmp_traps service edit: The OPTIONS= line below will supercede those above
OPTIONS="-Lsd -p /var/run/snmptrapd.pid -c /etc/snmp/snmptrapd.conf -C -On
127.0.0.1 172.31.15.254 172.31.15.254"
2. Save your change and exit the text editor.
3. Restart the snmptrapd service:
# service snmptrapd restart
5.8.4 Configure Additional Boot Option on ProLiant DL145 Generation 2 Client
Nodes With PCI-X InfiniBand Cards
This note applies only to systems ProLiant DL145 Generation 2 Client Nodes With PCI-X
InfiniBand Cards. Skip this task if the system uses other networking or interface cards, such as
Quadrics, Myrinet or InfiniBand PCI-Express single data rate (SDR) or double data rate (DDR).
An additional kernel boot option is required on ProLiant DL145 Generation 2 Client Nodes with
PCI-X InfiniBand cards. Without this boot option, the card will not come up properly, even
though it is seen with the lspci command.
Depending upon the system configuration, follow one of these procedures to add the boot option:
• If the system is homogeneous and all nodes are ProLiant DL145 Generation 2 nodes, add
the additional kernel boot option (noapic), to the grub.conf file in the golden image, as
follows:
1. Use the text editor of your choice to edit the golden image version of the grub.conf
file:
44 System Configuration