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Chapter 4 - Managing and Monitoring
Fan Status
The Fan Status LED indicates the condition of the cooling fans. The LED will
illuminate green when both fans are functioning normally and will change to
amber if either of the fans fail.
Drive LEDs
The Drive LEDs are located on the left side of the front bezel between the
ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs. The
Drive LEDs are grouped in pairs and are in the general location of the disk drive
slot.
These Drive LEDs assist with identifying array status, the presence of a drive in a
drive slot, and which drives are experiencing I/O activity.
The Drive Status LEDs are also used for the "One-Touch Annunciation"
Configuration Display system, refer to "One-Touch Annunciation Configuration
Display" on page 108 for more information.
Drive Status LEDs
There are twelve Drive Status LEDs. The Drive Status LED is the left LED of each
pair of Drive LEDs. This LED will illuminate steady green when a drive is present
in the slot and powered on. If a drive is not present the LED will be off.
Drive Activity LEDs
There are twelve Drive Activity LEDs. These LEDs will flash indicating a specific
drive is being accessed, either during read or write activity. The Drive Activity
LED is the right LED of each pair of Drive LEDs.
Drive Carrier LitePipes
On each disk drive carrier are "LitePipes." They are located on the lower right side
of each drive carrier. The LitePipes present some of the information provided by
the front bezel Drive LEDs, that is, drive activity information and drive fault
(failure) or data rebuilding notifications when the front bezel is removed.
105
Fan Status
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