Technical Product Specification

Intel® Server System SR1560SF TPS Hard Disk Drive Support

Revision 1.2

Intel order number D92959-006

6.3.2 LED Support

The backplanes support an activity/fault LED for each of the hard drive connectors. The LED will

illuminate green for activity or amber for a drive fault. The green activity LED is driven by the

SAS/SATA hard disk drive directly. The amber fault LED is driven by the VSC410* management

controller whenever a fault condition is detected. When the drive is used in a RAID

configuration, the RAID controller will have control over the fault LED and it may exhibit different

behavior.

Table 26. LED Function

Status LED Definition

Green HDD Activity

Amber HDD Fail

The activity LED functionality is controlled directly by the hard drives. This causes the LED to

function differently between SAS and SATA drives. The expected operation is outlined below.

Table 27. Hard Drive Activity LED Functionality

Condition Drive Type Behavior

SAS Ready LED stays on Power on with no drive activity

SATA Ready LED stays off

SAS Ready LED blinks off when processing a command Power on with drive activity

SATA Ready LED blinks on when processing a command

SAS Ready LED stays off Power on and drive spun down

SATA Ready LED stays off

SAS Ready LED blinks Power on and drive spinning up

SATA Ready LED stays off

6.3.3 Backplane Connector Definitions

The backplanes include several different connectors. This section defines the purpose and pin-

out associated with each.

6.3.3.1 Power Connector (Backplane to Power Supply Harness)

The backplane provides power to the three hard drive bays and the slim-line drive bay. An 8-pin

power cable is routed from the power supply and plugs into a 2x4 shrouded plastic PC power

connector on the backplane. The following table shows the power connector pin-out.

Table 28. Backplane Power Connector Pin-out (J1B1)

Pin Name Pin Name

1 Ground 5 +12V

2 Ground 6 +12V

3 +5V 7 5VSB

4 +5V 8 +3.3V