Asset ID:	1-72-1002116.1
Update Date:	2009-12-03
Keywords:

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Solution Type  Problem Resolution Sure

Solution  1002116.1 :   Sun Fire[TM] V480/490 and V880/890 : Serial access from RSC lost after setting service-mode? to true  


PreviouslyPublishedAs
203016

Symptoms
Serial access from RSC is lost after setting service-mode? to true , or keyswitch placed in diag position and a reset is issued on Sun Fire[TM] V480,V880,V890 and V490 systems with 4.15 and higher firmware.

This behavior began with firmware 4.15.1 on V480/490 and V880/890

For V480/490 that was with patch ID 113034-15
For V880/890 that was with patch ID 112186-17

and continues thru the current OBP revs.

Resolution
If service-mode? = true, and is accidently done by the remote user, or accidently left by the local user (keyswitch put in diags and left accidently) it can be overridden by the RSC bootmode skip_diag command and invoke a power-cycle or reset from RSC.

To recover the serial console:
from the rsc> prompt issue bootmode skip_diag
from the rsc> prompt issue reset

Respond with yes to the prompt:
Are you sure you want to reset your server (Yes/No)? yes

After the RSC Alert: Host System has Reset message appears
from the rsc> prompt, issue console

When the ok prompt returns

from the ok prompt enter setenv service-mode? false
*or* set the frontpanel keyswitch to normal (on)

from the ok prompt, issue a reset-all

Additional Information
This behavior is documented on table 2 of the Service Mode Overrides ( variables input-device and output-device set to Factory default) on page 7 of the OpenBoot PROM Enhancements for Diagnostic Operation Part Number 817-6957-10

The pdf document is included beginning in firmware patches beginning with 112186-17 and 113034-15.

This behavior is also documented in the RSC 2.2.2 Release notes 816-3995-11 page 12.

Product
Sun Fire V480 Server
Sun Fire V880 Server
Sun Fire V890 Server
Sun Fire V490 Server

Internal Comments
Audited/updated 12/03/09 - [email protected], Entry Level SPARC Content Team Member

Please see FIN I1070-1 for Open Boot Prom 4.15 or later enhanced diagnostic operation.

RSC, service-mode?, serial, console
Previously Published As
80408

Change History
Date: 2008-11-18
User Name: T230884
Action: Quality Review
Date: 2006-07-25
User Name: 95826
Action: Update Canceled
Comment: *** Restored Published Content *** canceling update as updater is no longer within Sun
Version: 0
Date: 2006-07-25
User Name: 95826
Action: Reassign
Comment: reassigning document as updater is no longer within Sun

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