IBM TotalStorage 3534-F08, Installation Manual

Page: 41 / 81

4. Diagnostic tests are run on a number of functions, including:
v Internal connections and circuitry
v
Port functionality
v
Ability to send and receive frames
v
Ability to implement QuickLoop functionality
v
All aspects of memory, parity, statistics counters, and correct serialization
5. A universal port configuration is performed.
6. The links are initialized.
7. The fabric is analyzed. If ports are connected to other fabric elements, the
principal switch in the fabric is identified.
8. The port addresses are assigned. The switch attempts to keep any previously
assigned port addresses.
9. The unicast routing tables are constructed.
10. The port is enabled.
To determine whether a POST has completed without errors, verify that all LEDs
return to a normal state after the POST is complete. If one or more LEDs continue
to flash, see “Interpreting LED activity” on page 19. Verify that the flashing is not
due to the switch being configured to beacon.
Note: The switchBeacon command sets the switch beaconing mode on or off if
the operand is 1 or 0 respectively. When beaconing mode is turned on, the
port LEDs flash orange in a running pattern from port 0 - port 7, port 7 - port
0, and then back to port 7 again.
For more information about beaconing, see the IBM TotalStorage SAN Fibre
Channel Switch 3534 Model F08 User’s Guide.
Note: When POST completes, verify that the switch prompt displays on a computer
terminal that is connected to the switch. If the prompt does not display, press
the Enter key. If the prompt still does not display, contact IBM.
If errors are detected during a POST, error messages are written to the system
error log. You can view this error log by using the errShow command. For
information about error messages, see the IBM TotalStorage SAN Fibre Channel
Switch 3534 Model F08 User’s Guide.
Maintaining the switch
Diagnostic tests are provided to help you to identify problems in the hardware and
the firmware. The diagnostic tests include tests of internal connections and circuitry,
fixed media, and any SFP modules and fiber-optic cables that are in use. You can
run the tests either using Telnet or through a terminal that is set up for a serial
connection to the switch. Some tests require that you connect the ports with
external cables. This enables the diagnostics to verify the serializer or deserializer
interface, as well as the attached SFP and cable.
All diagnostic tests are run at link speeds of 1 Gbps and 2 Gbps. As a result, the
transmit and receive speed of the links can be temporarily locked at one speed or
the other while the diagnostic tests are running. For information about the specific
diagnostic tests and how to run them, see the IBM TotalStorage SAN Fibre Channel
Switch 3534 Model F08 User’s Guide.
Chapter 4. Operating the 3534 Model F08
23