Table 13. RAID controller LEDs (continued)

Icon LED Color Operating states

1
Expansion
port bypass

Amber v Off - Normal operation.

v On - One of the following situations has

occurred:

– An SFP module is inserted in the drive

loop port and the fibre-channel cable is
not attached to it.

– The fibre-channel cable is not attached

to an expansion unit.

– The attached expansion unit is not

turned on.

– An SFP has failed, a fibre-channel

cable has failed, or an SFP has failed
on the attached expansion unit.
Expansion
loop

Green v On - Normal operation.

v Off - The RAID controller circuitry has

failed, or the RAID controller has no
power.
2Gbps Fibre channel
port speed

Green v On - Normal operation (host connection is

at 2 Gbps)

v Off - Host connection is at 1 Gbps

10BT 10BT Green v If the Ethernet connection is 10BASE-T:
The 10BT LED is on, 100BT LED flashes
faintly.

v If the Ethernet connection is

100BASE-T: 10BT LED is off, 100BT LED

is on.

v If there is no Ethernet connection - Both

LEDs are off.
100BT 100BT
1
Always use the DS4000 Storage Manager client to identify the failure.
Table 14. Fan LED
LED Color Operating states
1

Fault Amber v Off - Normal operation.

v On - The fan CRU has failed.

Power supply

fault LEDs

Power LED

Fan fault LED

Fan fault LED Power LED

f10ug026

Figure 59. Fan and power supply LEDs

74 IBM TotalStorage DS4100 Storage Server: Installation, User’s, and Maintenance Guide