Fujitsu IRF-1S series User Manual page 123

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. Pressing and holding the Alarm Reset button will
cause these LEDs to display the Host I/O and Disk I/O card speed settings, and
the presence of Host I/O, Disk I/O cards, and controllers. Refer to "One-Touch
Annunciation Configuration Display" on page 115 for more information.
Drive LEDs
Drive Slot 1
Drive Slot 2
Drive Slot 3
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 Slot 4 Drive Slot 7 Drive Slot 10
Drive Slot 5 Drive Slot 8 Drive Slot 11
Drive Slot 6 Drive Slot 9 Drive Slot 12
Front Bezel LED Identification
Chapter 4 - Managing and Monitoring
Cooling Fan Status LED
Power Supply Status LED
Channel Status LED
Power On LED
RESET ALARM
Alarm Reset Button
(One-Touch Annunciation)
Drive Status LEDs
111