Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
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Solution Type Sun Alert Sure Solution 1021044.1 : Improper AC Input Power Supply Redundancy Testing on Sun SPARC Enterprise M3000/M4000/M5000 Servers May Result in Domain Outages, or Cause Components to be Falsely Marked as Faulty
PreviouslyPublishedAs 269808 Bug Id <SUNBUG: 6729779> Product Sun SPARC Enterprise M3000 Server Sun SPARC Enterprise M4000 Server Sun SPARC Enterprise M5000 Server Date of Resolved Release 14-Oct-2009 Improper AC Input Power Supply Redundancy Testing on Sun SPARC Enterprise M3000/M4000/M5000 Servers May Result in Domain Outages, or Cause Components to be Falsely Marked as Faulty 1. Impact On Sun SPARC Enterprise M3000/M4000/M5000 Servers running XCP firmware version prior to 1090, improper AC input power supply redundancy testing may result in domain outages or boot failures. In addition, certain components may be falsely marked as faulty, prompting unnecessary replacement of good components. 2. Contributing Factors This issue can occur in the following release: SPARC Platform
This issue can occur when performing AC input power supply redundancy testing using an improper procedure, as in the following example: 1. Power cord in one of the power
supplies is pulled or grid is switched off.
2. Insert power cord that was removed in previous step, or switch on grid that was switched off. 3. Wait for power recovery message similiar to "Aug 10 19:40:38 UTC 2009 SCF:Power recovery (/PSU#0)". 4. Remove power cord or switch off grid of a different power supply. which may result in one or both of the following:
XSCF> version -c xcpIf the value listed as "Current" is less than 1090, the system may be vulnerable to this issue. 3. Symptoms Messages similiar to the following will be in the "showlogs monitor" output: Aug 10 19:40:31 UTC 2009 Power failure (/PSU#1)4. Workaround If current XCP firmware version is before 1090, proper procedure for AC input power supply redundancy testing is as follows: 1. Switch off all main line
switches of AC GRID A.
2. Confirm that the POWER LED on the operator panel is on. 3. At the XSCF Shell, verify power failure with the showlogs event command. 4. Switch on all the main line switches of AC GRID A (switched off in Step 2). 5. At the XSCF Shell, verify power recovery with the showlogs event command. 6. Check that the AC-LED and DC-LED are lit on PSU#0 (M4000 server) or PSU#0/PSU#2 (M5000 server). 7. From the XSCF Shell, confirm a Power Status is On by executing the showhardconf command. 8. Switch off all main line switches of AC GRID B. 9. Confirm that the POWER LED on the operator panel is on. 10. At the XSCF Shell, verify power failure with the showlogs event command. 11. Switch on all the main line switches of AC GRID B (switched off in Step 9). 12. At the XSCF Shell, verify power recovery with the showlogs event command. 5. Resolution This issue is addressed in the following release: SPARC Platform
http://www.oracle.com/technetwork/server-storage/sun-sparc-enterprise/downloads/index.html Note: A new "Power recovery complete" message has been added to XCP release 1090 to show when it is safe to power off the next grid. Modification History 12-Jan-2010: Updated Impact and Workaround sections for clarification 10-Jun-2010: Updated to include M3000 Server Internal Comments (for SAs) Please send technical questions to the following email: [email protected] and CC the following persons: Internal Contributor/Submitter Internal Eng Responsible Engineer Internal Services Knowledge Engineer Internal Contributor/submitter [email protected] Internal Eng Responsible Engineer [email protected] Internal Services Knowledge Engineer [email protected] Internal Eng Business Unit Group Systems Group - Enterprise Systems Attachments This solution has no attachment |
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