Found 1 New Failures Updated - Asm Health Checker

: 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

The ASM Health Checker can trigger this alert for a variety of reasons. Below are the most frequent root causes encountered in production environments.

When the health checker detects a problem, it updates the ASM alert log and sends notifications to the database administrators. asm health checker found 1 new failures updated

Based on real‑world case studies and Oracle diagnostic reports, the “found 1 new failures” alert is most frequently caused by:

When this message appears, it means the health checker has completed its routine scan and has in your storage system. This is not a routine informational message—it's a serious alert that requires immediate analysis and remediation to prevent potential data loss or system downtime. : Adding disks to or resizing an ASM

adrci> set homepath diag/asm/+asm/+ASM1 adrci> show alert -p "message_text like '%ASM Health Checker found%'"

Troubleshooting "ASM Health Checker found 1 new failures updated" in Oracle ASM When the health checker detects a problem, it

This alert is frequently triggered when a disk fails, a path is lost, or a corruption occurs that the ASM metadata cannot immediately repair. Common Causes for ASM Health Checker Failures

Mirrored disks going offline due to controller issues, which can force a disk group to dismount to prevent data loss. Unbalanced I/O:

ALTER DISKGROUP <diskgroup_name> ONLINE ALL; ALTER DISKGROUP <diskgroup_name> CHECK;

: A physical disk or LUN becomes inaccessible, or a write error occurs that ASM cannot recover from through mirroring.