Quantum QXS Series Hardware Installation And Maintenance Guide

Chapter 9 Hardware installation and configuration issues 77
Controller module fault LEDs
The controller module (CM) has a number of ports, some with independent status LEDs. The illustration below
is of the SAS four-port version of the CM. The amber LEDs listed below are the only ones that provide fault
condition status. The asterisk (*) indicates a fault condition.
12Gb/s
= SAS 4-port
12Gb/s
LED Type Color State Status
SAS expansion
port
Amber
On* Critical SAS cable fault
Fast flash* (1s on, 1s
off)
SAS unit identification (UID) active
Slow flash* (3s on, 1s
off)
Non-critical SAS cable fault
Off SAS expansion port functioning properly
Hardware fault Amber
On* CM hardware fault
Fast flash (1s on, 1s off) Part of sequence as CM comes online
Off CM functioning properly
OK to remove White
On Ready for removal, the cache is clear
Off
Do not remove the CM, cache still contains unwritten
data
Figure 60 Controller module fault LEDs
Consult your solution service documentation for details on how to minimize system disruption during service
replacement of a controller module. Fault conditions include the following:
l
Logs or events indicate a fault condition for the CM.
l
The Hardware fault LED on the CM is steady or flashing amber.
l
The Hardware fault LED for the SAS expansion port on the CM is steady or flashing amber.
l
The Hardware fault LED for one of the four SAS 12Gb/s ports on the CM is steady or flashing amber.
l
The Module fault LED on the storage enclosure ops panel is steady amber.
l
Troubleshooting indicates a problem with the CM. When you are isolating connectivity or drive module fault
conditions, stop the data flow to the affected disk groups from all hosts as a data protection precaution and
perform a backup of your data.
When all of the prior LED fault conditions occur simultaneously, it is a clear indication of component failure.
Expansion module fault LEDs
The expansion module has a number of ports, some with independent status LEDs. The amber LEDs listed
below are the only ones that provide fault condition status. The asterisk (*) indicates a fault condition.

Quantum QXS Series Specifications

General

Brand	Quantum
Model	QXS Series
Category	Storage
Language	English