Quantum DXi4701, User Manual

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Chapter 2: DXi4701 Basic Operations
DXi4701 Expansion Module
Quantum DXi4701 User’s Guide 37
DXi4701 Expansion
Module Power Supply
Indicators
Each DXi4701 Expansion module power supply has LED indicators to
show whether power is present or whether a power fault has occurred
(see Figure 18 ):
• DC Power - Lights green when the DC output voltage is within the
limit.
• Power supply/cooling fan fault - Lights amber when a fault with
the power supply or fan is detected.
6 SAS port (Out) link status Indicates SAS port status:
• Lights green when all the links to the port are
connected.
• Lights amber when one or more links to the
port are not connected.
• The LED remains off if enclosure is not
connected.
7 EMM status LED The EMM status LED lights when the EMM power
is on:
• Lights green when the EMM is functioning
properly.
• Lights amber when the enclosure does not boot
or is not properly configured.
• Blinks green quickly when a firmware download
is in progress.
• Blinks green slowly when a peer auto-update is
in progress.
• Blinks amber two times when the enclosure is
unable to communicate with enclosure devices.
• Blinks amber four times when a firmware
update fails.
• Blinks amber five times when the firmware
versions are different between two EMMs in an
enclosure.
Item
Indicator, Button, or
Connector Icon Description