Understanding and Resolving "ASM Health Checker Found 1 New Failures"
After the underlying issue is resolved (e.g., the disk is back online or the metadata is repaired), you need to "close" the failure in the ADR so the health checker stops reporting it. Inside ADRCI :
Troubleshooting Oracle ASM Health Checker Failures The message "ASM Health Checker found 1 new failures"
An automated rotation cycle failed, leaving the secret in a broken state or causing a mismatch with the target database. Step-by-Step Diagnostic Framework asm health checker found 1 new failures
The "1 new failure" wasn't a death sentence, but it required surgery. Leo had to:
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:
If dd fails with "Input/output error", the disk is physically failing. Understanding and Resolving "ASM Health Checker Found 1
SELECT name, total_mb, free_mb, required_mirror_free_mb, usable_file_mb FROM v$asm_diskgroup; Use code with caution.
Verification failure due to expired security subscriptions.
To investigate the failure, follow these steps: Leo had to: The "ASM Health Checker found
: Review the ASM alert log file (usually found in the ADR home) for specific ORA- errors or messages about disk evictions. Validate Path Visibility
: One or more LUNs/disks became inaccessible due to hardware, cable, or storage controller issues. Write I/O Errors
Communication loss across Oracle Real Application Clusters (RAC) nodes can provoke a dirty detach from the cluster lock domain.