Using The Monitoring Line Card For Diagnostics - HP Cluster Platform Interconnects v2010 Manual

b. Verify that the host booted correctly by making a connection to the host
through its management console. If it did not boot correctly, check
the startup procedures in the software documentation and see the HP
ROM-Based Setup Utility User Guide, which is provided in the server's
documentation set.
3. If the yellow LED on a server's PCI card is not illuminated, the GM-2 MCP
firmware is not loaded or is not running. Use the following procedure to check
the PCI card:
a. The PCI card might not be seated properly in the PCI slot. Power down
and remove the server from the rack. Open its case to reseat the card as
described in the server's hardware documentation.
b. Verify that the PCI riser card is not defective or installed incorrectly.
c. When rebooting the server, boot it into setup mode and verify that the card
is visible to the system. Refer to the the section on PCI POST (power-on
self-test) errors in the HP ROM-Based Setup Utility User Guide.
If the card is not visible to the system or is generating system hardware error
codes, replace it with a card that is known to be working.
4. If a specific interconnect line card does not have green link LEDs illuminated
on all ports, verify that the card is seated in the enclosure.
5. If you do not see a green link LED illuminated on a specific PCI interface or a
specific port on an interconnect line card, verify that the port is connected by
an appropriate cable and that the cable is properly inserted in the port.
6. Test for a failed interconnect line card port or PCI card port by connecting the
suspect port to a good port (one where the link LED is illuminated).
7. If you suspect that the fiber-optic cable itself might be bad, replace the cable
with one from a working connection (or with a known good cable). Fiber-optic
cables can be damaged if the cable is bent beyond its approved bend radius.
Dust or foreign matter on the plug's ceramic tip or in the card's physical port
can also cause an otherwise good cable to malfunction.

4.3 Using the monitoring line card for diagnostics

You can use the monitoring line card on the interconnect to run diagnostic tools
and check ports for problems. The easiest way to informally monitor events and
counters on the interconnect switch is with a Web interface.
With the monitoring line card installed, your switch's IP address is also the address
of a Web server running inside the switch. The switch's IP address is assigned via
DHCP. To determine the IP address that was assigned to the switch, look at the
/var/state/dhcp/dhcpd.leases file on your DHCP server. With DNS, a switch
name is equivalent to a switch IP address.
You can perform the following functions using the Web browser interface with
the interconnect switch:
• Obtain diagnostic information, such as the serial number and temperature
of each line card
• Reboot a line card, a backplane, or a fan monitor
• Turn the LEDs on and off
• Turn ports on and off on a specific line card
• Obtain crc counts
• Obtain the number of packets communicated per second
4-2 LED indications and diagnostics