Diagnostics - IBM TotalStorage DS4000 Hardware Maintenance Manual
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SAN Data Gateway Router Version 0339.11 Built Dec 13 1999, 15:14:14
VxWorks (for Pathlight (i960RD)) version 5.3.1.
Kernel: WIND version 2.5.
value = 26 = 0x1a
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Diagnostics
The diagnostic suite is a subset of the manufacturing test program. When enabled,
the diagnostic suite is capable of performing external loopback testing of all major
hardware interfaces (SCSI, fibre channel, and Ethernet).
Toolkit P/N 34L2606 (supplied with the Router) contains the necessary loopback
plugs to run the Diagnostics. It includes the following hardware:
v Service port cable: One RS-232 null-modem cable with 9-pin connectors
v SCSI loopback cable: One short wide-Ultra cable with 68-pin connectors
v Fibre channel: One fibre channel short-wavelength or long-wavelenh
fiber-optic loopback plug
v Ethernet: One 10BASE-T Ethernet loopback cable
v Fuses: Two 250 V, 4 A time-lag fuses (type F4AL)
Diagnostic tests
To verify proper operation of the SDG or whenever a FRU has been replaced, a
complete diagnostic check of the router can be performed. It is recommended
that you perform these tests prior to returning the SDG Router to the customer.
Diagnostic test preparation
Perform the following steps to verify proper operation of the SDG or a replaced
FRU:
1. Attach the service terminal to the SDG Router.
2. Turn on the SDG Router and wait until it has finished the startup cycle.
3. From the service terminal, type diagBoot.
4. Wait until the SDG Router has finished the startup cycle. The Shell prompt
should be diagmode>.
5. From the service terminal, type showBox.
6. Verify that the SDG Router is configured according to the customer's
requirements:
a. If all installed FRUs are shown, go to "Fibre channel tests".
b. If all installed FRUs are not shown, see Chapter 3 of the 2108 Model R03
Service Guide (MAP).
Fibre channel tests
Perform the following steps to verify proper fibre channel operation:
1. Attach the fibre channel loopback plug to the card in PMC slot 1. (You can
also use the plug from FAStT MSJ).
Note: This test works only if the card is an ISP2200. If the card is an ISP
2100, the following error displays: Card in slot 0 is not fibre
channel. You can also run FAStT MSJ to verify if the SDG Router is
being detected. However, you cannot run the diagnostics (Loopback
and Read/Write Buffer test) on the SDG Router.
2. From the service terminal, type fcSlotTest 1
Chapter 14. IBM Storage Area Network Data Gateway Router (2108-R03)
133
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