: Disks are missing, offline, or have lost membership.
asmcmd checkset -g DATA
Oracle's Health Monitor records every automatic and manual health check. Use the V$HM_RUN view to confirm the execution of the health checker that triggered the alert and to get its specific run ID.
Validates that ASM metadata mirrors across redundancy sets. asm health checker found 1 new failures
Run the following command to see the specific failure identified: list failure Use code with caution.
Failures can occur if a monitored service is down or flapping.
The "ASM Health Checker found 1 new failures" line is rarely generated in isolation. It is usually surrounded by a sequence of catastrophic errors inside the alert_+ASM.log file. A standard failure log footprint mirrors this pattern: : Disks are missing, offline, or have lost membership
If the failure coincides with a scheduled credential rotation, the rotation Lambda function may have failed mid-process.
Have you encountered an unusual "1 new failure" not covered here? Share your specific error message—solutions vary by Oracle version (11.2 to 23ai) and storage vendor.
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Connect to your ASM instance using sqlplus and run the following command to see a history of Health Monitor runs:
The "ASM Health Checker found 1 new failures" notification is a critical alert in the F5 BIG-IP Application Security Manager ecosystem. This error indicates that a background diagnostic script has detected a discrepancy or a component failure within the Web Application Firewall (WAF) module. If ignored, these failures can lead to configuration sync issues, traffic processing latency, or complete service outages. Immediate Impact of ASM Health Check Failures
Fix: Force a manual sync from the device group settings or perform a "Sync-Only to Group" operation. Step 3: Restarting the ASM Engine Validates that ASM metadata mirrors across redundancy sets