Amber light on the Mx000 Server lit without an error

Asset ID:	1-72-1599463.1
Update Date:	2018-03-05
Keywords:

Solution Type Problem Resolution Sure

Solution 1599463.1 : Amber light on the Mx000 Server lit without an error

Applies to:

Sun SPARC Enterprise M5000 Server - Version Not Applicable to Not Applicable [Release N/A]
Sun SPARC Enterprise M9000-32 Server - Version Not Applicable to Not Applicable [Release N/A]
Sun SPARC Enterprise M9000-64 Server - Version Not Applicable to Not Applicable [Release N/A]
Sun SPARC Enterprise M8000 Server - Version Not Applicable to Not Applicable [Release N/A]
Sun SPARC Enterprise M3000 Server - Version Not Applicable to Not Applicable [Release N/A]
Oracle Solaris on SPARC (64-bit)

Symptoms

Amber maintenance LED is on, but no fault found.

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Cause

If a Mx000 system shows a lit maintenance LED for no apparent reason, perform the following:

Double check if the amber maintenance LED is really lit on the server
( this can't be confirmed remotely or from an XSCF snapshot; only direct from the operator panel )
Verify serial number locally with the one provided in showhardconf ( to ensure the correct platform )
Verify overall hardware status is OK and the command output from "showstatus" provides normal operational status
Verify "showlogs error" and "fmdump" doesn't show actual events
Verify firmware level, with "version -c xcp", as older revisions of XCP (below 1071) had issues with sticking LED

If the above have been checked and all excluded as possible reasons for the maintenance LED then this may be an erroneous, non-reproducible
behavior of SCF software on the XSCF which set the LED register wrongly or just did not reset from the previous state.

This may be fixed by a workaround.

XSCF> showstatus
No failures found in System Initialization.

>>> this means NO fault on the server, normal operational status

Solution

Workaround: manual refresh of the LED status register

set explicitly the LED status register

XSCF> setlocator blink ( confirm it's blinking )
reset explicitly the LED status register

XSCF> setlocator reset ( confirm it's off )

If the maintenance LED is still on, try the following:

Reboot the XSCF unit
XSCF> rebootxscf -y
Update the XCP firmware to the latest available revision ( see referenced Matrix and FAQ information below )
Re-perform the workaround
If problem persists, please open a hardware service request for the appropriate CSI

References

<BUG:15447970> - SUNBT6645828 "COULD NOT WRITE FRU-ID STATUS" IS DETECTED
<BUG:15449915> - SUNBT6649341 SHOWSTATUS INDICATES NO FAILURE, BUT CHECK LED(ON OPNL) IS LIT
<NOTE:1386012.1> - LED Stuck On SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Server
<NOTE:1002631.1> - Sun SPARC[TM] Enterprise M3000, M4000, M5000, M8000, M9000 XSCF Control Package (XCP) Firmware Image Software Version Matrix Information
<NOTE:1393702.1> - Sun SPARC(R) Enterprise M3000/M4000/M5000/M8000/M9000 (OPL): XCP FAQs

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