IBM xSeries 440 8687, Hardware Maintenance Manual

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Testing the scalability and RXE cabling
There are 12 ports on each xSeries 440 chassis that can be tested:
1. The six scalability ports
2. The two RIOG ports (Port A and Port B)
3. The four ports on the Remote Expansion Enclosure:
a. The two internal ports (Port A and Port B)
b. The two internal ports (between Side A and Side B)
Depending on the BIOS determination of what is present on the system, some of
the ports will not be selectable (greyed out), shown with a
″
.........
″
:
Note: When starting the diagnostic programs, make sure that Esc is pressed on
the primary server first (see step 2 on page 59 of “Starting the diagnostic
programs” on page 59). The merge must be bypassed on the primary server
first. If Esc is pressed on the secondary server first, some ports will be
disabled, greying out the test for those ports.
v
If SMP2 is not present, all 4 entries under SMP2 will be greyed out.
v If RXE100 is not present, all 4 RXE100 entries will be greyed out; or, if either
side is not present, that side will be greyed out. (The SideB shown below is not
present.)
v
If the port being tested blocks access to the chip controlling that port, that entry
will be greyed out. An example is shown below,
″
RXE100, SideA Port
″
. Testing
that port will drive traffic on the cable between SideA and the xSeries 440 so that
the Summit chip on the RXE100 cannot be accessed to stop the test.
======================================================================
SMP1: Scalability Port1 __________
Scalability Port2 __________
Scalability Port3 __________
RXE Expansion Port A __________
SMP2: Scalability Port1 __________
Scalability Port2 __________
Scalability Port3 __________
RXE Expansion Port B __________
RXE100, SideA Port ..........
RXE100, from SideA to SideB __________
RXE100, from SideB to SideA ..........
RXE100, SideB Port ..........
======================================================================
Use the following procedure to test any of these 12 ports:
1. Turn on pinging for two seconds.
2. Count the pings issued, the pings received, and the errors received.
A port passes this test if both:
1. The port error status indicates:
a. no transmit errors
b. no receive errors
2. The percentage-good determined by (pings received) divided by (pings issued)
is greater than 98%.
However, a test can fail for many reasons. These checks are made just before the
pinging is set to start:
1. The port is not initialized.
Diagnostics
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