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DELL MD660i User Manual

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Item
Indicator, Button, or 
Connector
Icon
Description
5
Cache active or cache 
offload indicator
The cache active or cache offload indicator lights green when on-
board controller memory contains data.
If AC power fails, this LED changes to indicate cache offload 
status.
If the password reset function has successfully changed the 
password, this LED flashes on and off briefly.
6
System identification 
indicator
The system identification indicator blinks blue when system 
identification switch push-button on the enclosure front panel is 
pressed.
7
Controller fault indicator
The controller fault indicator lights amber when controller fault is 
detected.
8
Controller power indicator
The controller power indicator lights green when controller power 
is on.
9
SAS OUT port
Provides SAS connection for cabling to a downchain expansion 
enclosure.
10
FC IN port 0
FC IN port 1
FC IN port 2
FC IN port 3
Provides host-to-controller FC connection.
Host Channel LED Link Rate Indications
Below each FC port is a pair of LED indicators. The status of any FC port can be determined by applying the condition of 
each LED pair.
Table 1. LED Status Indicators
LED 1
LED 0
Port Status
Off
Off
Link down
Off
On
2 Gbps link
On
Off
4 Gbps link
On
On
8 Gbps link
SFP Transceivers Fibre Optic And SAS Cables
NOTE: Your small form-factor pluggable (SFP) transceivers and cables may look different from the ones shown 
below. The differences do not affect the performance of the SFP transceivers.
FC host connections may operate at 8 Gbps or at a lower data rate. Ports for 8 Gbps Fibre Channel host connections 
require SFP transceivers designed for this data rate. SFP transceivers that support other data rates are incompatible.
WARNING: Do not disassemble or remove any part of a SFP transceiver due to the possibility of being exposed to 
Laser radiation.
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