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Symptom-to-FRU Index (Netfinity EXP15 - 3520)



Symptom-to-FRU Index

Use this chart to find solutions to problems that have definite symptoms.

Problem Indicator    FRU / Action
  
Amber LED On (Front Panel) 1. Drive CRU
  
Amber and Green LED 1. Host issued a drive rebuild command
Flashing (Front Panel)
Amber LED On (Fan CRU) 1. Fan
  
Amber LED On (ESM Board) 1. ESM board
  2. Check for fan fault LED
  3. Unit is overheating. Check temperature.
  
Amber LED On, Green LED Off 1. Turn Power Switch On
(Power Supply CRU) 2. Power cord
  3. Reseat Power Supply
  4. Power Supply CRU
  
Amber and Green LEDs On 1. Power Supply CRU
(Power Supply CRU)
Amber and Green LEDs Off 1. Reseat drive CRU
(Drive CRU) 2. Drive CRU
  
All Green LEDs Off 1. Check AC voltage cabinet AC
(All CRUs)     voltage line inputs.
  2. Power Supplies
  3. Mid-plane board
  
Intermittent power loss to 1. Check AC voltage line inputs, and
Expansion Unit     cabinet power components.
  2. Power Supplies
  3. Mid-plane board
  
One or more Green LEDs Off 1. Turn Power Switch On
(Power Supply CRU) 2. Power Cord
  3. Reseat Power Supply
  4. Power Supply CRU
  
One or more Green LEDs Off 1. No activity to the drive
(One or Two Drive CRUs) 2. This can be normal activity
  
One or more Green LEDs Off 1. Use SCSI RAID Manager to check
(All Drive CRUs or those     drive status
on one bus) 2. SCSI Cables
  3. ESM Board
  4. Mid-plane board
  
One or more Green LEDs Off 1. Affected CRU
(Several CRUs) 2. ESM Board
  3. Mid-plane board Check SCSI cables
  
Unable to access drives on 1. Check SCSI cables and connections
one or both SCSI busses 2. Option switch 2 must be set to off
(Drives and SCSI Bus) 3. ESM board
  
Intermittent Power Loss 1. AC power or plug
(Some or all CRUs) 2. Power supply CRU
  3. Mid-plane
  
Random errors 1. Mid-plane board
  2. Make sure option switches 1 and 2 are set to off


NOTE: If you cannot find the problem in the troubleshooting charts, test the entire system. See the server documentation for more detailed information on testing and diagnostic tools.


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