nStor NexStor 4200F Series, Руководство пользователя

Страница: 136 / 174

Chapter 5 - Troubleshooting
Problems During Bootup
124
Problems During Bootup
The following sections describe problems you might encounter during Power On
Self-Test (POST) or during bootup sequence of the enclosure and explains how
to resolve those problems. POST shows problems related to the processor, logic,
and memory.
Nothing is displayed
on the terminal
emulator screen. The probable cause of this
problem is either a bad
RS-232 cable connection or
an incorrect cable type. If the cable is properly connected,
ensure that the cable is a
null modem
type.
Screen is updated, but
will not respond to
keystrokes. Improper setting. Disable hardware flow control on the
terminal or terminal emulator.
Symptom Solution
Controller failed the onboard
memory test (ECC Error). When this failure occurs, it means the internal CPU memory
failed. Replace the controller to correct the problem.
One of the POST diagnostic
tests failed. Replace the faulty controller.
The system hangs during a drive
scan. Follow these steps to resolve the problem:
1 Check the enclosure(s) to make sure everything is
properly connected.
2 Remove and replace the drive that failed the scan.
3 If the enclosure(s) and the drive work properly,
replace the controller.
An Active-Active controller pair
always fails over after booting
up. Verify that the controller that is failed/killed is set to its
default configuration (Multiport or Multi TID mode). Verify
the same SDRAM DIMM sizes are in both controllers.
Active-Active controllers require the same SDRAM DIMM
size. Verify that the firmware is th same for both controllers.
Symptom Reason Solution
4200F.book Page 124 Thursday, January 23, 2003 2:47 PM