Dot Hill Systems II 200 FC Manuale Utente

Failed Component Alarm Codes

This appendix describes failed component alarm codes. 

Failed component alarm codes use Morse code dot and dash characters. The dot “.” is 
a short tone sounding for one unit of time. The dash “-” is a long tone sounding for 
three units of time.

Alarms, also referred to as beep codes, are presented in a sequence, starting with the 
critical component failure alarm, which alerts you to a component problem or failure 
or a firmware mismatch. This alarm is then followed by alarms for whichever 
components or assemblies have failed. Once the beep code sequence is complete, it 
repeats. To understand the beep codes, listen to the sequence of codes until you can 
break down the sequence into its separate alarms. You can also check your software or 
firmware for alarms, error messages, or logs to isolate and understand the cause. For 
example, in the case of a fan failure in a power supply, you might first hear the critical 
component failure alarm, followed by a power supply failure alarm from power supply 
0 or power supply 1, followed by a fan failure event alarm. This sequence continues to 
repeat.

Table C-1 Failed Component Alarm Codes

Critical component 
failure or mismatch

8 dashes

--------

Power supply 0 failure

P0

. -- . -----

Power supply 1 failure

P1

. -- . . ----

Event alarm

E

.

Fan failure

F

. . - .

Voltage failure

V

. . . -

Temperature failure

T

-

SES/PLD firmware 
mismatch

R

.  -  .