Asm Health Checker Found 1 New Failures Updated |best| Link

When this message appears, it usually follows a specific event like adding a disk, a rebalance operation, or a diskgroup dismount. The "failure" refers to an entry in the , which tracks critical errors that could impact data availability.

Apply the latest Oracle Grid Infrastructure patches. Oracle frequently releases fixes for ASM bugs that could otherwise lead to disk group corruption.

This command allows Oracle ASM to automatically fix any errors it can, such as correcting broken metadata pointers or updating stale allocation tables. In practice, executing this command often resolves the alert entirely. asm health checker found 1 new failures updated

A formal review of this failure should include an investigation of the root cause and an immediate assessment of data risk.

: Adding disks to or resizing an ASM Cluster File System (ACFS) can sometimes trigger failures if voting files cannot be refreshed or membership refresh fails. Recommended Diagnostic Steps When this message appears, it usually follows a

Then re-run:

The alert string indicates that the Oracle Automatic Storage Management internal diagnostic framework has detected a critical structural event, typically resulting in an automated, non-clean dismount of an active disk group. This error is commonly found in the alert_+ASM.log file. It appears when a storage failure cascades past individual disk-level tolerances, forcing the ASM instance to halt I/O operations and initiate a cluster reconfiguration to preserve data integrity. Anatomy of the Failure Oracle frequently releases fixes for ASM bugs that

The most direct diagnostic command is the built‑in disk group validation:

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