IBM 4500R Hardware Maintenance Manual - Page 17

Operator information panel, SCSI Hard Disk Drive Activity Light

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AC Power Light: This light provides status information about the power supply. During normal operation, both the AC and DC Power lights are on. For any other combination of lights, see "Power supply LED errors" on page 121. Operator Information Panel: The lights on this panel give status information for your server. See "Operator information panel" for more information. DC Power Light: This light provides status information about the power supply. During normal operation, both the AC and DC Power lights are on. For any other combination of lights, see "Power supply LED errors" on page 121 . Hard Disk Status Light: Each of the hot-swap drive bays has a Hard Disk Status light. When this amber light is on continuously, the drive has failed. When the light flashes slowly (one flash per second), the drive is being rebuilt. When the light flashes rapidly (three flashes per second), the controller is identifying the drive. Hard Disk Activity Light: Each of the hot-swap drive bays has a Hard Disk Activity light. When this green light is flashing, the controller is accessing the drive. Operator information panel LINK OK TX RX 1 SCSI Hard Disk Drive Activity light 2 Ethernet Link Status light 3 Ethernet Transmit/Receive Activity light 4 Information light 5 System Error light SCSI Hard Disk Drive Activity Light: This green light is on when there is activity on a hard disk drive. Ethernet Link Status Light: When this green light is on, there is an active connection on the Ethernet port. General information 9

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General information
9
AC Power Light:
This light provides status information about the power supply.
During normal operation, both the AC and DC Power lights are on. For any other
combination of lights, see “Power supply LED errors” on page 121.
Operator Information Panel:
The lights on this panel give status information for your
server. See “Operator information panel” for more information.
DC Power Light:
This light provides status information about the power supply.
During normal operation, both the AC and DC Power lights are on. For any other
combination of lights, see “Power supply LED errors” on page 121 .
Hard Disk Status Light:
Each of the hot-swap drive bays has a Hard Disk Status light.
When this amber light is on continuously, the drive has failed. When the light flashes
slowly (one flash per second), the drive is being rebuilt. When the light flashes rapidly
(three flashes per second), the controller is identifying the drive.
Hard Disk Activity Light:
Each of the hot-swap drive bays has a Hard Disk Activity
light. When this green light is flashing, the controller is accessing the drive.
Operator information panel
±
1
²
SCSI Hard Disk Drive Activity light
±
2
²
Ethernet Link Status light
±
3
²
Ethernet Transmit/Receive Activity light
±
4
²
Information light
±
5
²
System Error light
SCSI Hard Disk Drive Activity Light:
This green light is on when there is activity on
a hard disk drive.
Ethernet Link Status Light:
When this green light is on, there is an active connection
on the Ethernet port.
LINK
OK
TX
RX