Descriptions of LEDs and Buttons
85
5.2.
Rear Panel
In this session, we will describe the system control LEDs, PSU LEDs, host card LEDs, and the
cache-to-flash module LED in the rear panel.
5.2.1.
Controller LEDs
Please refer to the following content for definitions of the LED behaviors.
Figure 5-3
The Controller LEDs
Table 5-3
Descriptions of XCubeSAN Series Controller LEDs
Number
Description
Definition
1
Controller Status LED
Solid
Green
: Controller status is normal.
Solid
Red
: System is booting or the controller
is failed.
2
Master / Slave LED
(only for dual
controllers)
Solid
Green
: This is the Master controller.
Off: This is the Slave controller.
3
Dirty Cache LED
Solid
Amber
: Data on the cache is waiting for
flush to disks.
Off: There is no data on the cache.
4
UID (Unique Identifier)
LED
Solid
Blue
: The enclosure has been
identified.
Off: The enclosure is not being identified.
5
Management Port
Connection LED
Solid
Green
: The connection is built and
normal.
Off: No connection is built.