LSI Niwot FwTermLog reports BBU08 has reached EOL

Asset ID:	1-72-2108858.1
Update Date:	2016-02-21
Keywords:

Solution Type Problem Resolution Sure

Solution 2108858.1 : LSI Niwot FwTermLog reports BBU08 has reached EOL

Applies to:

Exadata X3-2 Hardware - Version All Versions to All Versions [Release All Releases]
Exadata X4-2 Hardware - Version All Versions and later
Information in this document applies to any platform.

Symptoms

The Battery Reached EOL message in Niwot FwTermLog can cause an engineer to unnecessarily replace the BBU.

Here is the “Battery Reached EOL” message found in LSI FwTermLog file.

02/15/16 2:55:03: Battery Reached EOL
02/15/16 2:55:03: EVT#31965-02/15/16 2:55:03: 253=Battery requires reconditioning; please initiate a LEARN cycle
02/15/16 2:55:03: Battery Yearly Deep Discharge Relearn Pending. Please Initiate a manual Relearn

The BBU was verified to be in working and operating condition. Refer to Doc ID 1542070.1 for related BBU operating guideline, checking BBU health and BBU Related MegaCLI Commands.

21017 -- 15 Feb 2015 2:54:21 - - Battery Present
21018 -- 15 Feb 2015 2:54:21 - - Battery has been replaced

In the LSI Megacli FwTermLog and GetEvents output, we can determine that the BBU was replaced on 15 Feb 2015 which is just a year ago. The expected BBU service life is supposed to be 2-3 years.

The LSI HBA firmware is at 12.12.0-0178

Versions
Product Name: LSI MegaRAID SAS 9261-8i
FW Package Build: 12.12.0-0178

Cause

The issue is due to this bug.
Bug 21533525 : TE: fwtermlog reports BBU08 has reached EOL but not reported elsewhere

Solution

The Battery Reached EOL message is just for information only, there is no need to take any actions.

The following message "Battery Yearly Deep Discharge Relearn Pending. Please Initiate a manual Relearn" is a suggestion to initiate a manual relearn on the iBBU08 once every year. If needed, the following command can be used to initiate the relearn cycle manually.

# /opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -BbuLearn -a0

The Battery Reached EOL message will not be displayed in upcoming Niwot firmware 12.12.0-0243 during normal operation as the message is misleading.

References

<BUG:21533525> - TE: FWTERMLOG REPORTS BBU08 HAS REACHED EOL BUT NOT REPORTED ELSEWHERE
<NOTE:1542070.1> - Reference information on LSI HBA battery backup unit (BBU) used on SAS2 RAID HBA
<NOTE:1669359.1> - BBU BATTERIES DON'T FULLY CHARGE UP TO 100% OF AVAILABLE CAPACITY

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