Справочник Пользователя для Intel SERVER CHASSIS SR2500 SR2500

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Intel® Server System SR2500AL 
Peripheral and Hard Drive Sub-System 
Revision – 1.00 
 
 
Intel order number D31980-004 
55
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 41. 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 
 
 
5.5.2.3 Optional 
6
th
 Hard Drive  
The backplane is capable of supporting a 6
th
 hot-swap SAS/SATA hard drive with the addition of 
an optionally installed backplane add-in board.  The 6
th
 drive add-in board assembly consists of 
a PCB with power and interface connectors, and a mounting bracket allowing for the add-in card 
to slide into a fitted cut out on the existing backplane.