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In a Real Application Clusters (RAC) environment, a rolling upgrade or manual DBA change left an initialization parameter (like ASM_DISKSTRING or ASM_POWER_LIMIT ) inconsistent across nodes. How to Fix:
Disk group redundancy failures (e.g., if a disk fails in a normal redundancy group, it checks if the partner mirror is healthy).
The ASM module is heavy on logging. If the /var or /appdata partitions reach 100%, the health checker will immediately trigger a failure. Symptoms: "Disk partition /var has insufficient space."
The term "ASM" can point to several technologies, but this specific alert is most commonly associated with two primary contexts: and cPanel/WHM's hosting automation platform . While the urgency is the same, the underlying cause and the fix differ significantly. We'll cover both scenarios, providing step-by-step guidance for each.
Metadata inconsistencies or corrupted blocks within a diskgroup can trigger health check failures.
Understanding and Resolving "ASM Health Checker Found 1 New Failures"
If your health checker runs inside a private VPC subnet, it cannot access the public AWS Secrets Manager endpoint without proper routing.
: Ensure the OS can still see all physical devices associated with the ASM disks. Oracle Help Center For more detailed troubleshooting, you can refer to the Oracle Automatic Storage Management documentation or check for tool-specific errors on the Oracle Support portal ASMCMD commands to check for disk redundancy or rebalance status?
Conclusion “asm health checker found 1 new failures” is more than a log line: it is an early warning. Responding effectively requires prompt triage, methodical diagnosis, and decisive remediation—combined with post-incident learning and engineering improvements to reduce recurrence. By classifying possible causes (storage, probe, resource, network, regression, auth), following a disciplined RCA approach, and implementing monitoring and automation best practices, teams can convert such alerts from frightening unknowns into manageable events and steadily improve system resilience.
OS reboots or configuration changes that cause device paths (e.g., /dev/dm-* ) to shift or drop out of ownership bounds. Step-by-Step Triage and Diagnostics
If the failure persists after addressing disk space or database issues, a restart of the ASM process is often necessary to clear the "1 new failures" state.
In a Real Application Clusters (RAC) environment, a rolling upgrade or manual DBA change left an initialization parameter (like ASM_DISKSTRING or ASM_POWER_LIMIT ) inconsistent across nodes. How to Fix:
Disk group redundancy failures (e.g., if a disk fails in a normal redundancy group, it checks if the partner mirror is healthy).
The ASM module is heavy on logging. If the /var or /appdata partitions reach 100%, the health checker will immediately trigger a failure. Symptoms: "Disk partition /var has insufficient space." asm health checker found 1 new failures
The term "ASM" can point to several technologies, but this specific alert is most commonly associated with two primary contexts: and cPanel/WHM's hosting automation platform . While the urgency is the same, the underlying cause and the fix differ significantly. We'll cover both scenarios, providing step-by-step guidance for each.
Metadata inconsistencies or corrupted blocks within a diskgroup can trigger health check failures. In a Real Application Clusters (RAC) environment, a
Understanding and Resolving "ASM Health Checker Found 1 New Failures"
If your health checker runs inside a private VPC subnet, it cannot access the public AWS Secrets Manager endpoint without proper routing. If the /var or /appdata partitions reach 100%,
: Ensure the OS can still see all physical devices associated with the ASM disks. Oracle Help Center For more detailed troubleshooting, you can refer to the Oracle Automatic Storage Management documentation or check for tool-specific errors on the Oracle Support portal ASMCMD commands to check for disk redundancy or rebalance status?
Conclusion “asm health checker found 1 new failures” is more than a log line: it is an early warning. Responding effectively requires prompt triage, methodical diagnosis, and decisive remediation—combined with post-incident learning and engineering improvements to reduce recurrence. By classifying possible causes (storage, probe, resource, network, regression, auth), following a disciplined RCA approach, and implementing monitoring and automation best practices, teams can convert such alerts from frightening unknowns into manageable events and steadily improve system resilience.
OS reboots or configuration changes that cause device paths (e.g., /dev/dm-* ) to shift or drop out of ownership bounds. Step-by-Step Triage and Diagnostics
If the failure persists after addressing disk space or database issues, a restart of the ASM process is often necessary to clear the "1 new failures" state.