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Hitachi Vantara Knowledge

What Information Do I Need to Gather to Allow GSC to Diagnose a HNAS Boot Loop

 

Question

What Information Do I Need to Gather to Allow GSC to Diagnose a HNAS Boot Loop?

Environment

  • Hitachi Network Attached Storage (HNAS)
    • 3100/3200
    • 3080/3090
    • 4000 series

Answer

If a HNAS is stuck in a "boot loop" where it completes so far through the startup process and then keeps resetting then we will require as much of the following information as possible:

  • A set of HNAS diagnostics for the node (if it stays up long enough for them to be downloaded.)
  • Capture the output of the serial console port for several of the loops.
    • If the system is a HNAS 3100/3200 then this information will be required for all three boards:
      • NIM
      • FSA/FSX
      • SIM
        • For the FSA/FSX and SIM a special dongle is required to connect to the console port which will have to be shipped to site.
    • If the system is a HNAS 3080/3090 or 4000 series:
      • You can also connect a monitor to the console video port.  Obviously this doesn't allow you to easily capture output except perhaps using a camera phone or similar.
  • Additionally for 3080/3090 or 4000 series:

If you have the choice, capturing via session logging serial terminal program is the best option since this allows cutting and pasting console output as-is to search for defects and thus is less prone to error/more successful.