Asm Health Checker Found 1 New Failures Updated Jun 2026

The health checker is part of Oracle's framework. Health Monitor checks examine various layers and components of the database, detecting file corruptions, physical and logical block corruptions, undo and redo corruptions, data dictionary corruptions, and more. Beginning with Oracle Database 11g, this framework has enabled DBAs and automated processes to run diagnostic checks. By default, the database runs health checks on a regular basis, and during the course of these executions, any detected failures are logged to the alert log.

Temporary SAN outages, faulty Host Bus Adapters (HBAs), or bad network switches can break communication lines between the ASM instance and the physical LUNs.

and running diagnostics. No immediate impact reported yet, but staying on top of it. #DBA #ASM #OracleHealth Quick Troubleshooting Tips Oracle ASM: Automatic Diagnostic Repository Command Interpreter (ADRCI) to view details on the new incident. F5 BIG-IP ASM: MySQL database health if you suspect a sync or configuration issue. Always check the asm health checker found 1 new failures updated

The operating system has lost connectivity to the device, or multipathing software (e.g., PowerPath, Device Mapper) is misconfigured.

It is crucial to understand that this is an immediate fatal error. ASM is reporting that it found something abnormal, but the disk group may still be mounted and operational (often in a degraded state). The health checker is part of Oracle's framework

A manual or automatic rebalance may clear the problem if the disk group maintains redundancy. Check the background work status:

Verify if the diskgroup is mounted, dismounted, or in the process of dismounting (ORA-15130). By default, the database runs health checks on

The instance logs an explicit ORA-15130 (Diskgroup being dismounted) error, followed immediately by the ASM Health Checker found 1 new failures summary event. 4. Dirty Detach Execution