Quantum QXS Series Hardware Installation And Maintenance Manual page 103

LED Type
SAS expansion
port
Hardware fault
OK to remove
Figure 67 Controller module LEDs to examine for fault conditions (SAS 4-port version)
To replace a 2U enclosure controller module:
1. Complete the following actions to remove the faulty CM:
a. Facing the rear of the storage enclosure, grasp the CM release latch between thumb and forefinger,
then squeeze together to release the latch and handle.
b. Pull the handle outward to lever the CM away from the midplane.
94 Chapter 10 In-service field maintenance for 2U enclosures
= SAS 4-port
12Gb/s
Color State
On*
Fast flash* (1s on, 1s
off)
Amber
Slow flash* (3s on, 1s
off)
Off
On*
Amber Fast flash (1s on, 1s off) Part of sequence as CM comes online
Off
On
White
Off
Figure 68 Controller module removal, upper (SAS 4-port version)
Status
Critical SAS cable fault
SAS Unit identification (UID) active
Non-critical SAS cable fault
SAS expansion port functioning properly
CMhardware fault
CMfunctioning properly
Ready for removal, the cache is clear
Do not remove the CM, cache still contains unwritten
data