Asm Health Checker Found 1 New Failures May 2026

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

WARNING: ASM Health Checker found 1 new failure Details: Disk group DATA, disk DATA_0000 is offline Connect to ASM instance: asm health checker found 1 new failures

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. The ASM Health Checker is a background process

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; asm health checker found 1 new failures

SET PAGES 500 COL NAME FOR A20 COL PATH FOR A40 COL FAILURE_REASON FOR A50 PROMPT Current ASM disk health: SELECT name, path, state, header_status, mount_status, failgroup FROM v$asm_disk WHERE header_status != 'MEMBER' OR state != 'NORMAL';