Asm Health Checker Found 1 New Failures Updated -

Proactive monitoring—via scheduled health checks, OEM metric alerts, and third‑party tools—ensures that you catch these failures early, often before they impact database availability. In the event of a genuine corruption that cannot be repaired, a robust backup and recovery strategy (including RMAN block recovery) will be your ultimate safeguard.

The is an internal mechanism, part of the ASM Instance , that continuously monitors the integrity of the disk groups, disk headers, and metadata structures. It acts as a preventative tool, alerting administrators to issues before they become full-blown outages, such as data corruption or disk group dismounting. asm health checker found 1 new failures updated

ASM Health Checker is a vital tool for database administrators, as it helps ensure the reliability, performance, and security of the database. By regularly checking ASM's health, administrators can detect potential issues before they become critical problems, minimizing downtime and data loss. ASM Health Checker monitors various aspects of ASM, including disk availability, space usage, and data consistency. This proactive approach enables administrators to take corrective actions, maintaining optimal database performance and security. It acts as a preventative tool, alerting administrators

A DBA was analyzing the ASM alert log and saw: "ASM Health Checker found 1 new failures" . The DBA then ran ALTER DISKGROUP DATA CHECK; and discovered that there was indeed an inconsistency in the disk group metadata—an orphaned extent map entry. After confirming that the database was still operational, the DBA ran ALTER DISKGROUP DATA CHECK ALL REPAIR; . The command completed successfully, the health checker alert cleared, and a subsequent health check reported zero failures. ASM Health Checker monitors various aspects of ASM,

Correct permissions using chown grid:asmadmin and chmod 660 if they have reverted to root . Step 5: Clear and Reset the Health Checker Alert