This document discusses how to check the battery life on the battery backup unit (BBU) for general purposes or you have received an event similar to this:
Warning battery: The battery backup unit in chassis XXXXXXXXXXXXXX slot 2 has indicated cell End Of Life. Replace the battery backup unit as soon as possible.
Prerequisite:
The cluster must be running Health Check Framework 35 or later and one of the following versions of OneFS:
# isi healthcheck version HealthCheck definition version: 35.0.0
# isi healthcheck run battery_test_status -v Queued evaluation to run: battery_test_status20231011T1718
isi healthcheck list | grep battery_test_status20231011T1718 Completed - Pass - /ifs/.ifsvar/modules/health-check/results/evaluations/battery_test_status20231011T1718
# cat /ifs/.ifsvar/modules/health-check/results/evaluations/battery_test_status20231011T1718 {"checklist_id": "battery_test_status", "delivery": [], "id": "battery_test_status20231011T1718", "overrides": [], "parameters": {}, "start_time": 1697044712.9590354} {"name": "battery_test_status", "parameters": {}, "status": "OK", "value": 100, "details": ["Battery 1 has 0 most recent test failures, threshold is 3", "Battery 1 Permanent fault status is False", "Battery 1 Capacity Degradation: 137600 mAh, 13.1%"], "node": "1", "passed": true} {"name": "battery_test_status", "parameters": {}, "status": "OK", "value": 100, "details": ["Battery 1 has 0 most recent test failures, threshold is 3", "Battery 1 Permanent fault status is False", "Battery 1 Capacity Degradation: 136100 mAh, 12.96%"], "node": "2", "passed": true} {"name": "battery_test_status", "parameters": {}, "status": "OK", "value": 100, "details": ["Battery 1 has 0 most recent test failures, threshold is 3", "Battery 1 Permanent fault status is False", "Battery 1 Capacity Degradation: 136850 mAh, 13.03%"], "node": "3", "passed": true} {"name": "battery_test_status", "parameters": {}, "status": "OK", "value": 100, "details": ["Battery 1 has 0 most recent test failures, threshold is 3", "Battery 1 Permanent fault status is False", "Battery 1 Capacity Degradation: 136400 mAh, 12.99%"], "node": "4", "passed": true} {"result":"PASS"}
isi upgrade cluster firmware devices | egrep "mongoose|bcc"
The output from the command looks like this:
# isi upgrade cluster firmware devices| egrep "mongoose|bcc" MLKbem_mongoose ePOST 02.40 1-4 EPbcc_infinity ePOST 02.40 5-8
The BBU firmware affects the amount of time to go from 40% degradation to 50% degradation.
If the BBU firmware version is 1.20, the battery should take four months to go from 40% to 50% degradation.
If the BBU firmware version is 2.20 or above, the battery should take 12 months to go from 40% to 50% degradation.
If BBU firmware version 1.20 or older is installed and want to upgrade to the latest supported firmware, you must review this document first: How to perform the battery test prior to upgrading to Node Firmware Package 10.3.9 or 11.6