Quantum QXS Series Hardware Installation And Maintenance Manual page 80

LED Type
SAS expansion
port
Hardware fault
OK to remove
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:
Logs or events indicate a fault condition for the CM.
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The Hardware fault LED on the CM is steady or flashing amber.
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The Hardware fault LED for the SAS expansion port on the CM is steady or flashing amber.
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The Hardware fault LED for one of the four SAS 12Gb/s ports on the CM is steady or flashing amber.
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The Module fault LED on the storage enclosure ops panel is steady amber.
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Troubleshooting indicates a problem with the CM. When you are isolating connectivity or drive module fault
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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 prior LED fault conditions occur simultaneously, it is a clear indication of component failure.
Expansion module fault LEDs
The expansion module has several 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.
= 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)
Off
On
White
Off
Figure 53 Controller module fault LEDs
Status
Critical SAS cable fault
SAS unit identification (UID) active
Non-critical SAS cable fault
SAS expansion port functioning properly
CM hardware fault
Part of sequence as CM comes online
CM functioning properly
Ready for removal, the cache is clear
Do not remove the CM, cache still contains
unwritten data
Chapter 9 Hardware installation and configuration issues 71