Technical Product Specification

6BHard Disk Drive Support Intel® Server System SR1625UR TPS
54 Intel order number E47487-012 Revision 2.0
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 41. 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