IBM totalstorage 326, User Reference

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Table 8. Descriptions of light-path diagnostics LEDs
Name Meaning
PS1 Power supply 1 failure.
PS2 Power supply 2 failure.
PS3 Power supply 3 failure.
NON Non-redundant power.
OVER The system has exceeded the power capabilities of the
installed power supplies.
NMI Non-maskable-interrupt occurred.
TEMP System temperature exceeded maximum rating.
FAN A fan failed or is operating slowly.
MEM Memory failure. One or more memory DIMMs have failed.
CPU Microprocessor failure. One or both microprocessors have
failed.
PCI A Error on PCI channel A or system board.
Note: PCI bus A is often referred to as PCI bus 0.
PCI B Error on PCI channel B or system board.
Note: PCI bus B is often referred to as PCI bus 1.
PCI C Error on PCI channel C or system board.
Note: PCI bus C is often referred to as PCI bus 2.
VRM Error on voltage regulator module or on integrated voltage
regulator.
DASD A hot-swap disk drive, backplane, or other part of SCSI
channel A has failed.
SP Integrated System Management Processor detected an error.
Remind button: You can use the remind button to place the front panel
system-error light into a remind mode. By pressing the button, you acknowledge the
failure but indicate that you will not take immediate action. If a new error occurs, the
LED will be on again.
In the remind mode, the system-error LED flashes every 2 seconds. The
system-error LED remains in remind mode until one of the following situations
occurs:
v
All known problems are resolved.
v
The system is restarted.
v
A new problem occurs.
You can use the remind button to delay maintenance. Also, resetting the
system-error LED enables the LED to react to another error. If the LED is still
blinking from the first error, it will mask additional errors.
Engine troubleshooting charts
You can use Table 9 on page 90 to find solutions to problems with the described
symptoms.
If you cannot find the problem in the table, go to “Starting the diagnostic programs”
on page 146 to test the Model 326 engine. If you have already run the diagnostic
test programs or if running the tests does not reveal the problem, call for service.
Chapter 8. Troubleshooting
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