IBM System Storage N3700, Hardware And Service Manual

Page: 77 / 106

1. With the system powered off, insert a paper clip into the tiny, unmarked hole
between the console and Ethernet ports. Make sure that you can feel the button
pushing in.
2. While the button is pressed with the paper clip, turn on power to the N3700
storage system.
3. Remove the paper clip from the hole.
The result is that the N3700 storage system begins booting, showing its
progress on the console screen.
Troubleshooting the N3700 storage system
Use this table to troubleshoot specific problems with your system.
Problem Possible cause Solution
CFE (common firmware
environment) won’t boot.
Last console status code
might be [ZBSS], [L12F], or
[CERR].
This indicates that something
is wrong with the memory
DIMM.
To fix this problem, begin with the first procedure in
the following list. If that doesn’t solve the problem,
continue down to the next troubleshooting tip on the
list until the problem is solved.
v
Unplug the battery in the CPU module for 5
seconds, plug the battery back in, and try booting
the N3700 storage system.
Note: Unplugging the battery might reset the clock.
v Reseat the DIMM on the CPU module.
v Replace the DIMM.
v Call your IBM service representative to replace the
CPU module.
CFE comes up but [CERR]
is printed out when booting
the kernel
This is a problem with
NVMEM. NVMEM is mainly
for power outages. Handling
the CPU module outside the
shelf while NVMEM is valid
might corrupt memory.
v If the CPU module was not handled, contact IBM
technical support.
v Otherwise, unplug the battery in the CPU module
for 5 seconds, plug the battery back in, and try
booting the N3700 storage system.
Note: Unplugging the battery might reset the clock.
CFE comes up but can’t
boot anything from the
CompactFlash card.
Contents of the CompactFlash
card are not correct.
Try entering this command at the CFE prompt, which
is equivalent to dir c: from a PC:
test fatfs ide0.0
If no errors occur and nothing is shown on the
console, the contents of the CompactFlash card are
not valid or the CompactFlash card is blank. Reinstall
Data ONTAP. Refer to “Netboot process for the N3700
storage system” on page 50 for more information.
If there is an error, replace the CompactFlash card.
Pinhole button
Figure 17. Pinhole reset button
Chapter 6. Error messages and troubleshooting
51