8
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
