XCubeFAS 2026
Hardware Manual
System Components Overview
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www.qsan.com
Official
Document
12
Figure 2-6 Controller LEDs
Table 2-5 Descriptions of 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.
6
Management Port
Accessing LED
Blinking
Amber
: Data is accessing.
7
10GbE iSCSI Port 1 LED
Blinking
Amber
: Data is accessing.