One or more disks in a disk group are no longer accessible.
SUCCESS: ALTER DISKGROUP... followed by immediate GMON dumping or failure notes.
The "ASM Health Checker found 1 new failures" alert is Oracle's way of telling you that the self-diagnostic system has found a problem. By following this structured guide, you can move from uncertainty to a controlled, informed resolution. This approach not only fixes the immediate issue but also strengthens your understanding and management of the robust ASM environment at the heart of your Oracle infrastructure. asm health checker found 1 new failures
: The diskgroup cannot maintain a read quorum, often leading to an automatic dismount. How to Diagnose and Fix To resolve the failure, follow these diagnostic steps:
Leo’s heart sank. In the world of Oracle ASM , "1 new failure" is rarely just one thing; it's the tip of an iceberg. One or more disks in a disk group are no longer accessible
The DBMS_HM.GET_RUN_REPORT function returns a detailed report, including the specific Finding Name (e.g., "System datafile is old"), its Type (e.g., FAILURE), Priority (e.g., CRITICAL or HIGH), and a descriptive message. This report is invaluable for understanding the exact nature of the problem.
The alert is a critical notification from Oracle's Automatic Storage Management (ASM) health monitoring system . It typically appears in the ASM alert logs or via automated email notifications when a storage-related incident is detected. Failure Overview The "ASM Health Checker found 1 new failures"
Appendix: Minimal quick runbook (steps to execute immediately)
The ASM Health Checker is part of the Oracle Check Framework. It runs periodic checks on the ASM instance, disk groups, and metadata to ensure everything is operating within healthy parameters.
Fix: Force a manual sync from the device group settings or perform a "Sync-Only to Group" operation. Step 3: Restarting the ASM Engine
Troubleshooting Guide: ASM Health Checker Found 1 New Failure