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Things to know - Seven-segment display use cases

The following table shows both startup errors and operation errors that can be used to point to a component failure.

Seven-segment display uses cases with repeating sequences

Use cases Repeating sequence

Use case: Controller power-on

 
  • Normal power-on controller insertion
  • Controller inserted while held in reset
SE+ 88+ blank-
Use cases Repeating sequence

Use case: Operational states

 
  • Normal operation
xy- (static controller tray ID)
  • Start-of-day (SOD) processing
OS+ Sd+ blank-
  • The controller is placed in reset while showing the tray ID.
OS+ OL+ blank-
  • The controller is operating on batteries (cache backup).
OS+ bb+ blank-
  • The CPU temperature has exceeded the warning level.
OS+ OH+ blank-
Use cases Repeating sequence

Use case: Component failure when the controller is operational.

 
  • Failed host interface card
OS+ CF+ HX+ blank-
  • Failed flash drive
OS+ CF+ Fx+ blank-
Use Cases Repeating sequence

Use case: Power-on diagnostic failure

 
  • A component that is not a field replaceable unit failure has been detected.
SE+ dF+ blank-
  • A processor DIMM failure has been detected.
SE+ dF+ "--"+ CF+ Px + blank-
  • A cache memory DIMM failure has been detected.
SE+ dF+ "--"+ CF+ Cx + blank-
  • A processor DIMM or a cache memory DIMM failure has been detected.
SE+ dF+ "--"+ CF+ dx + blank-
  • A host interface card failure has been detected.
SE+ dF+ "--"+ CF+ Hx + blank-
  • An incorrect number of cache backup devices have been detected.
SE+ LC+ "--"+ CF+ Fx + blank-
Use cases Repeating sequence

Use case: Controller is suspended and there are no other errors to report.

 
  • All lockdown conditions
OH+ Lx+ blank-
Use cases Repeating sequence

Use case: The controller is suspended because of component errors.

 
  • Persistent processor DIMM error correcting code (ECC) errors have been detected.
OE+ L2+ "--"+ CF+ CX+ blank-
  • Persistent cache DIMM ECC errors have been detected.
OE+ L2+ "--"+ CF+ CX+ blank-
  • Persistent processor or cache DIMM ECC errors have been detected.
OE+ L2+ "--"+ CF+ CX+ blank-
Use cases Repeating sequence

Use case: The controller has been suspended as a result of persistent cache backup configuration errors.

 
  • The write-protect switch is set during cache restore.
OE+ LC+ blank-
  • The memory size changed with dirty data in the flash drives.
OE+ LC+ dd+ blank-
Use cases Repeating sequence

Use case: The controller has been suspended as a result of diagnostic errors.

 
  • A cache memory diagnostic failure has been detected.
dE+ L2+ "--"+ CF+ Cx + blank-
  • A base controller diagnostic failure has been detected.
dE+ L3+ "--"+ CF+ b1 + blank-
  • A base controller IOC diagnostic failure has been detected.
dE+ L3+ "--"+ CF+ b2 + blank-