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Chapter 4 Chapter 4 LED status indicators ....................................................... 50
NetBackup 5220 LEDs .......................................................................................................... 50
Mainboard LEDs ........................................................................................................... 50
Control panel .................................................................................................................. 51
2-Port 8Gb FC HBA ..................................................................................................... 52
4-Port GE NIC ............................................................................................................... 54
2-Port 10GE NIC .......................................................................................................... 55
Symantec Storage Shelf LEDs ............................................................................................. 56
Disk module and device LEDs .................................................................................... 56
I/O module LEDs .......................................................................................................... 57
Power module LED ....................................................................................................... 59
Chapter 5 Chapter 5 Troubleshooting scenarios .............................................. 61
Hardware fault types .............................................................................................................. 61
Hardware cannot be powered on ......................................................................................... 62
Possible causes ................................................................................................................ 63
Fault Diagnosis .............................................................................................................. 63
Procedure ......................................................................................................................... 63
Memory capacity has decreased .......................................................................................... 64
Symptom .......................................................................................................................... 64
Possible Causes ............................................................................................................... 64
Fault Diagnosis .............................................................................................................. 64
Procedures ....................................................................................................................... 65
Disk status LED is red .......................................................................................................... 69
Symptom .......................................................................................................................... 69
Possible Causes ............................................................................................................... 70
Fault Diagnosis .............................................................................................................. 70
Procedure ......................................................................................................................... 70
All disks cannot be scanned .................................................................................................. 70
Possible Causes ............................................................................................................... 71
Fault Diagnosis .............................................................................................................. 71
Procedure ......................................................................................................................... 71
Fan On/Alarm LED is red or other data indicates fan problems ............................... 73
Symptoms ........................................................................................................................ 74
Possible Causes ............................................................................................................... 74
Fault Diagnosis .............................................................................................................. 74
Procedure ......................................................................................................................... 74
Power module problems ........................................................................................................ 77
Symptom .......................................................................................................................... 77
Possible Causes ............................................................................................................... 78
Fault Diagnosis .............................................................................................................. 78