Technical Product Specification

Hard Disk Drive Support Intel® Server System SR1600UR TPS
38 Intel order number E45725-010 Revision 1.8
6.3.2 LED Support
The backplanes support an activity/fault LED for each of the hard drive connectors. The LED
illuminates 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 has control over the fault LED and it may exhibit
different behavior.
Table 23. 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 in the
following table.
Table 24. Hard Drive Activity LED Functionality
Condition
Drive Type
Behavior
Power on with no drive activity
SAS
Ready LED stays on
SATA
Ready LED stays off
Power on with drive activity
SAS
Ready LED blinks off when processing a command
SATA
Ready LED blinks on when processing a command
Power on and drive spun down SAS Ready LED stays off
SATA
Ready LED stays off
Power on and drive spinning up
SAS
Ready LED blinks
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 slimline 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: