Chapter 3 Subsystem Monitoring
3.2.2
Controller Module LEDs
The controller module faceplate is shown in
Figure 3-1
below. The LEDs are
numbered from
1
to
5
and their definitions are shown in
Table 3-2
below.
Figure 3-1: Falcon 24 BayController Faceplate
LED
Name
Color
Status
1
Ready
Green
ON
indicates that the controller has successfully
booted, is active, and is operating properly.
OFF
indicates that the controller is not ready for
operation.
2
Host Busy
Green
ON
indicates that the host ports are carrying data
traffic, i.e., the host ports are busy.
OFF
indicates that there are no activities on the
host ports, i.e., no data is being transmitted over
the host buses.
3
Drive Busy
Green
ON
indicates active I/Os on the drive side.
OFF
indicates that there are no activities on the
drive side.
4
Partner Failed
Amber
ON
indicates the partner controller has failed.
This LED is only functional on the FALCON-
R2224 dual-controller configuration.
OFF
indicates
that
the
dual-controller
configuration is operating normally.
5
Cache Dirty
Amber
ON
indicates that data is currently cached in
memory or is being held up by the BBU during a
system power loss.
Table 3-2: Controller Module LED Definitions
Status-indicating LEDs
3-3
