IBM TotalStorage NAS 300, User Reference

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Diagnostics-panel LEDs viewed with the cover off:
Table 22. Diagnostics-panel LED descriptions
Index Name Meaning
1
CPU Microprocessor failure. One or both microprocessors
have failed.
2
VRM Error on VRM or on integrated voltage regulator. The
LED next to the affected VRM will also be on.
3
Memory Memory failure. One or more memory DIMMs have
failed.
4
PCI BUS Error on the PCI bus or system board.
5
Power supply 2 Power supply 2 failure.
6
Power supply 1 Power supply 1 failure.
7
Fan A fan failed or is operating slowly.
8
Remind button Press this button to temporarily reset the LEDs on the
diagnostics panel.
9
DASD A hot-swap hard disk drive, backplane, or other part of
SCSI channel A has failed. The amber LED next to the
drive bay with the failing drive will also be on.
10
NMI A non-maskable interrupt occurred.
11
Service Processor
bus The system environmental monitor detected an error.
12
Nonredundant Nonredundant power.
13
Temperature The operating temperature inside the engine was
exceeded.
CPU
VRM
MEMORY
DASD
NMI
SERVICE
PROCESSOR BUS
FAN
POWER SUPPLY
PCI BUS
2 1
NONREDUNDANT
TEMPERATURE
REMIND
8 1
2
3
4
5
6
7
9
11
12
10
13
Figure 13. Diagnostics panel LEDs (viewed with the cover off)
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NAS Gateway 300 User’s Reference