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Preliminary
Power-On-Self-Test (POST)
SANbox-16HA Fibre Channel Switch
3-10 Diagnostics/Troubleshooting 59005-03 Rev. A Installer’s/User’s Manual
Fibre Channel Port Loop-back Test Failure (8 Blinks)
This test runs in Continuous Test only. Continuous Test is controlled by the
Test Mode switch. Use this test only under the direction of QLogic Customer
Support or your authorized maintenance provider. They will tell you how to
activate this test.
The Switch is not operable while in Continuous Test. In Continuous Test mode, the
Switch Fibre Channel Port Loop-Back Test verifies the ability of each Switch ASIC
to loop data out through each Fibre Channel port, through a loopback plug, and
back to the ASIC control port. In order to accomplish this test, you must attach a
loop-back plug to each GBIC as you test it. QLogic supplies one loopback plug of
each GBIC type that you ordered. Therefore you will be able to test the GBICs one
at a time.
To test:
1. Place the chassis into Continuous Test.
2. Remove all GBICS from the chassis except the one you want to test.
The GBIC under test may be in any port. The Continuous Test will skip
all empty ports.
3. Insert a loopback plug into the GBIC.
4. Cycle the chassis power to cause a reset.
5. After a few seconds of testing, if the Heartbeat LED is blinking the
normal “heartbeat” (about once per second), the GBIC passes the test.
If the Heartbeat LED blinks the 8-blink error code, the GBIC failed.
Repeat steps 2 through 5 to test all GBICs one at a time.
6. When all tests are complete, place the Test Mode Switch back in the
“Normal Run” position (small dot on the end of the shaft pointing
straight up).
7. Cycle the chassis power to cause a reset.
Switch Bus Test Failure (9 Blinks)
The Switch may be operable. The Switch Bus Test verifies the ability of the Switch
ASICs to communicate to each other via the busses that interconnect the ASICs. A
failure indicates an inability of an ASIC pair to communicate over one or more
busses. The Switch is operable as long as at least one Frame Bus is operable.
However, some normal processing functions such as in-order delivery may be
adversely affected. A failure blinks the Heartbeat LED nine times between three-
second pauses. No port Logged-in LEDs blink.