Collection Of The Memory Dump; Preparing For Memory Dump; Saving Dump Files - NEC Express5800 Series User Manual

7-38 Troubleshooting

COLLECTION OF THE MEMORY DUMP

If a failure occurs, the memory data should be dumped to acquire information for failure analysis. If
you stored the dump data in a DAT,label it so as to indicate the software (e.g. NTBackup) you used
for storing it. You may save the memory data to a desired destination.
IMPORTANT:
Consult with contact NEC Corporation of America's Technical Support or your authorized
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Sales agent before dumping the memory. Executing memory dumping while the server is
in the normal operation may affect the system operation.
Restarting the system due to an error may display a message indicating insufficient virtual
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memory. Ignore this message and proceed. Restarting the system again may result in
dumping improper data.
The Memory dump file is saved in NECDump folder in the root of C.
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Both the CPU and I/O modules must be primary in the same enclosure. If The dump
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button fails to work bring down the CPU module in the Secondary enclosure
Press the DUMP switch on the primary CPU/IO module, who's POWER LED has been
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blinking, for four to eight seconds. Use a straighten metal paper clip to press the DUMP
switch on primary CPU/IO module.

Preparing for Memory Dump

If the system hangs restarting after pressing the DUMP switch it may be necessary to force the
server to shut down and then restart.

Saving Dump Files

Press the DUMP (NMI) switch on the
primary CPU/IO module to save the dump
file when an error occurs. Insert something
sharp-pointed like a pen into the switch hole
to press the DUMP switch.
Pressing the DUMP switch saves the dump
file in the specified directory. (Memory
dumping may not be available when the CPU
stalls.)
IMPORTANT:
Do not use a toothpick or plastic
stick that is easy to break.
DUMP (NMI) switch