HP StorageWorks B-Series Multi-protocol Router Blade Installation Guide (A7990-90002, June 2006)

Operating the B-Series MP Router blade26
Interpreting POST results
POST is a system check that is performed each time the B-Series MP Router blade is powered on,
rebooted, or reset, and during which the LEDs flash different colors.
To determine whether POST completed successfully and whether any errors were detected:
• Verify that the LEDs on the switch indicate that all components are healthy (LED patterns are
described in Table 4 on page 24). If one or more LEDs do not display a healthy state:
• Verify that the LEDs are not set to “beacon” (this can be determined through the
switchShow command or Web Tools). For information about how to turn beaconing on
and off, see the HP StorageWorks Fabric OS administrator guide.
• Follow the recommended action for the observed LED behavior, as listed in Table 4 on
page 24.
• Log in to the 4/256 SAN Director as admin, and run the slotShow command. The status of the
B-Series MP Router blade is displayed in the output.
• Log in to the 4/256 SAN Director as admin, and view the system log for errors. Any errors
detected during POST are written to the system log, which is accessible through the errShow
command. For information about this command, see the Fabric OS Command reference manual.
For information about specific error messages, see the Fabric OS system error message reference
manual.
Maintaining the B-Series MP Router blade
The B-Series MP Router blade is designed for high availability and to minimize the chance of failure,
and does not require any regular physical maintenance.
Diagnostic tests
In addition to POST, Fabric OS includes diagnostic tests to help you troubleshoot the hardware and
firmware. This includes tests of internal connections and circuitry, fixed media, and the transceivers
and cables in use. The tests are implemented by command, either through a telnet session or
through a terminal set up for a serial connection to the switch. Some tests require the ports to be
connected by external cables, to allow diagnostics to verify the serializer/deserializer interface,
transceiver, and cable. Some tests require loop back plugs.
Diagnostic tests are run at link speeds of 1 Gbit/sec, 2 Gbit/sec, and 4 Gbit/sec.
NOTE: Diagnostic tests might temporarily lock the transmit and receive speed of the links during
diagnostic testing.
For information about specific diagnostic tests, see the HP StorageWorks Fabric OS administrator
guide.