HP XC System Software Administration Guide Version 3.1

Service: System Free Space
Status Information: Node / and /var free space
This entry typically displays the status of the /, /var, and /hptc_cluster file systems on the node.
A warning or critical message indicates that the thresholds for the specific node were exceeded.
Clean up disk space.
20.4 System Interconnect Troubleshooting
This section describes the troubleshooting steps for the following supported system interconnects:
• “Myrinet System Interconnect Troubleshooting” (page 235)
• “Quadrics System Interconnect Troubleshooting” (page 236)
• “InfiniBand System Interconnect Troubleshooting” (page 238)
20.4.1 Myrinet System Interconnect Troubleshooting
The following troubleshooting information applies to the Myrinet system interconnect. Perform these
steps on any node on which you suspect a problem to determine if your HP XC system is configured
properly. If these tests pass but you are still experiencing difficulty, see Chapter 19: Using Diagnostic Tools
(page 215).
1. Run the gm_board_info test:
# /opt/gm/bin/gm_board_info
This command displays all the nodes in the HP XC system.
2. Make sure that you are running an HP XC kernel. The HP XC kernels are identified by the presence
of XC in the kernel name:
# uname -a
Linux n16 2.4.21-15.7hp.XCsmp #1 SMP date ... GNU/Linux
3. Make sure that your system has Myrinet boards installed:
# lspci -v | grep Myrinet
05:0d.0 Network controller: MYRICOM Inc. Myrinet 2000 . . .
Subsystem: MYRICOM Inc. Myrinet 2000 Scalable Cluster Interconnect
4. Run the gm_debug test:
# /opt/gm/bin/gm_debug
This command should complete without errors; there should be no nonzero counters containing the
string bad.
5. Make sure all the Myrinet RPMs are installed:
# rpm -q -a
.
.
.
gm-2.1.7_Linux-2.1hptc
m3-dist-1.0.14-1
mute-1.9.6-1
.
.
.
The version numbers for your HP XC system may differ from these.
20.4 System Interconnect Troubleshooting 235