Configuring and Installing Components 4-41
4.13.1 Disk Drive Status LEDs
Three LEDs are located on the front of the disk drive carrier: a Drive
Activity LED, an On-Line LED, and a Drive Failure LED. Figure 4–20
shows the location of the LEDs and Table 4–1 explains the status LED
displays.
Figure 4–20 Location of Drive Status LEDs
Drive Activ-
ity LED
(Green)
Depending on the host con-
troller, this LED can either
flash by itself or in unison
with the On-Line LED when
there is SCSI bus activity.
This LED is off when there
is no bus activity.
On-Line LED
(Green)
When the +5 VDC is avail-
ableandthediskisproperly
installed, this LED is on.
Otherwise, it is off. Depend-
ing on the host controller,
this LED can either flash by
itself or in unison with the
Drive Activity LED when
there is SCSI bus activity.
MR0045
LEDs
Drive Failure
LED
(Amber)
Depending on the host con-
troller, this LED can flash
when an error condition is
detected by the controller.
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