Asm Health Checker Found 1 New Failures -

: The ASM instance freezes the global resource directory to isolate the broken component.

Set up alerts on v$asm_health_check itself:

A repair operation can sometimes trigger an automatic rebalance of the disk group to restore its optimal state. Monitor the progress using the V$ASM_OPERATION view.

Attribute 'compatible.asm' value '19.0.0.0.0' higher than software version '12.2.0.1.0' asm health checker found 1 new failures

If dd fails with "Input/output error", the disk is physically failing.

The "ASM Health Checker found 1 new failures" message is an indicator that there might be issues affecting your ASM storage environment. Promptly investigating and resolving these issues can help maintain database performance and availability. Always refer to Oracle documentation and support resources for specific guidance tailored to your environment.

Detect and notify when the ASM (Application Security Management / Assembly / depending on context) health checker identifies that weren’t present in the previous check. : The ASM instance freezes the global resource

The correct resolution depends on the findings from the previous steps.

Conclusion “asm health checker found 1 new failures” is more than a log line: it is an early warning. Responding effectively requires prompt triage, methodical diagnosis, and decisive remediation—combined with post-incident learning and engineering improvements to reduce recurrence. By classifying possible causes (storage, probe, resource, network, regression, auth), following a disciplined RCA approach, and implementing monitoring and automation best practices, teams can convert such alerts from frightening unknowns into manageable events and steadily improve system resilience.

The ASM Health Checker runs automatically and reports any issues or failures it detects. The checker runs at regular intervals, which can be configured using the ASM_CHECK_INTERVAL parameter. Attribute 'compatible

Demystifying the Oracle Alert Log Error: "ASM Health Checker Found 1 New Failures"

2026-05-30T10:14:22.102555+01:00 WARNING: Write Failed. group:1 disk:2 AU:4 offset:4190208 size:4096 path:/dev/oracleasm/disks/DATA02 asynchronous result:'I/O error' 2026-05-30T10:14:22.155824+01:00 ORA-15130: diskgroup "DATA" is being dismounted 2026-05-30T10:14:22.193916+01:00 ASM Health Checker found 1 new failures 2026-05-30T10:14:22.201907+01:00 List of instances (total 1) : 1 My inst 1 2026-05-30T10:14:22.210482+01:00 NOTE: initiating dirty detach from lock domain 1 Use code with caution. The Sequence of Events

The alert typically appears in your Oracle ASM alert logs when the Automatic Diagnostic Repository (ADR) health monitor detects a critical issue during a maintenance task, such as a diskgroup rebalance or a disk add operation. Understanding the Failure