7-18 Troubleshooting
Collection of the Memory Dump
If a failure occurs, the memory data should be dumped to acquire the required information.
IMPORTANT:
Collect memory dump through consultation with a maintenance service engineer of your
maintenance service company. Collecting memory dump while the system is running
successfully can result in a problem in system operation.
You may see a message telling you the virtual memory is not sufficient in a reboot
following a failure. Continue to start up the system. If you perform reset and attempt to
restart again, dumping data may fail.
Press the DUMP switch for four to eight second on the primary CPU/IO module, with
POWER LED blinking,.
Preparing for Memory Dump
Memory dumping with the DUMP switch may disable the server to restart. In such a case, it is
required to shut down the server forcibly.
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
/ver/crash/. (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
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