Asm Health Checker Found 1 New Failures | WORKING ● |

Here’s a deep technical guide to understanding and resolving the message in Oracle Grid Infrastructure / ASM environments. 1. What Is the ASM Health Checker? The ASM Health Checker is a background process ( ASMB or GMON -related) that periodically validates the integrity and configuration of Oracle ASM (Automatic Storage Management) disk groups, disks, and metadata. It runs automatically as part of the ASM instance or via CRSCTL utilities.

-- Purge old health records DELETE FROM SYS.ASM_HEALTH_CHECKER_HISTORY WHERE CHECK_TIME < SYSDATE - 7; COMMIT; -- Force a fresh check EXEC DBMS_SCHEDULER.RUN_JOB('SYS.ASM_HEALTH_CHECKER_JOB', false); asm health checker found 1 new failures

SELECT * FROM V$ASM_HEALTH_CHECKER_HISTORY ORDER BY CHECK_TIME DESC FETCH FIRST 10 ROWS ONLY; SELECT * FROM V$ASM_OPERATION WHERE STATE='FAILED'; Here’s a deep technical guide to understanding and

PROMPT Recent health check failures: SELECT check_time, failure_count, failure_reason FROM v$asm_health_checker_history WHERE check_time > SYSDATE - 1 ORDER BY check_time DESC; The ASM Health Checker is a background process

But —they often lead to DG dismounts. 7. Sample Diagnostic Script Save as asm_health_check.sql :

PROMPT Pending operations: SELECT * FROM v$asm_operation WHERE state != 'DONE';