New Failures [cracked] — Asm Health Checker Found 1

Troubleshooting Oracle ASM Health Checker Failures The message "ASM Health Checker found 1 new failures"

Grep the ASM logs for the timestamp of the failure.

: A "Dirty detach reconfiguration" may start as the cluster tries to handle the failure. Database Downtime

By following these best practices and resolving the issue reported by the ASM Health Checker, you can ensure the health and performance of your ASM infrastructure and prevent future failures. asm health checker found 1 new failures

sqlplus / as sysasm SET LINESIZE 200 COL failure_type FORMAT a30 COL detail FORMAT a60 SELECT failure_id, failure_type, check_name, time_detected, status, detail FROM v$asm_health_check WHERE status = 'FAIL' ORDER BY time_detected DESC;

ALTER DISKGROUP DATA SET ATTRIBUTE 'scrub.mode'='AUTO'; ALTER DISKGROUP DATA SET ATTRIBUTE 'scrub.interval'='7d';

Oracle Automatic Storage Management (ASM) is the backbone of database storage performance and availability. When the Oracle Grid Infrastructure Health Checker (or Autonomous Health Framework) alerts you that the it means a critical metric has drifted outside of safe operating parameters. sqlplus / as sysasm SET LINESIZE 200 COL

Run the health checker in verbose mode to identify exactly which assertion failed.

If the failure persists after addressing disk space or database issues, a restart of the ASM process is often necessary to clear the "1 new failures" state.

Your first diagnostic step is to view the Grid Infrastructure alert log. This log is typically located under the Automatic Diagnostic Repository (ADR) home. If the failure persists after addressing disk space

To minimize the risk of encountering this or similar alerts, implement these best practices:

It turned out a routine disk add operation from earlier that morning had gone sideways. A subtle corruption on had been lying in wait. When the ASM rebalance operation hit that specific block, the Health Checker—a silent guardian that usually stays in the background—spotted the anomaly and pulled the emergency brake to prevent further data loss.

Physical hardware degradation is the primary culprit. This includes dropped LUNs, failing physical drives in an Exadata Storage Server, or a catastrophic RAID controller error. If ASM cannot access a disk within its required timeout window, it marks the drive offline. 2. Storage Area Network (SAN) Multipathing Failures