Asm Health Checker Found 1 New Failures Site

Oracle ASM relies on internal health-checking daemons to continuously evaluate storage accessibility. These daemons screen disk groups, failgroups, and read/write response times.

This alert is not a sign of imminent database doom, but it is a critical early warning that requires a structured and thorough response. This comprehensive guide provides a complete reference for understanding, diagnosing, and resolving the health checker alert, along with actionable best practices to prevent it from occurring again.

The output will contain specific "Findings" that list the failure type, its priority (e.g., CRITICAL or HIGH ), and the exact object it affects. A sample finding might look like this: asm health checker found 1 new failures

Did this happen after a or update?

If the header_status reads CANDIDATE or UNKNOWN instead of MEMBER , you must re-add the disk or trigger an ASM disk online operation: ALTER DISKGROUP ONLINE DISK ; Use code with caution. 2. ASM Disk Header Corruption Oracle ASM relies on internal health-checking daemons to

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The or log snippet surrounding the failure. Your Oracle Grid Infrastructure version (e.g., 19c, 21c). This comprehensive guide provides a complete reference for

⚠️ Warning: This will briefly interrupt traffic if you are not in an HA configuration. To restart only the ASM services: bigstart restart asm Best Practices for Prevention