The health checker uses this data to identify potential issues, such as disk failures, performance bottlenecks, or configuration problems. When an issue is detected, the health checker updates the ASM alert log with a failure message, indicating the type and severity of the problem.
When ASM Health Checker reports "Found 1 new failures updated," it indicates that a new issue has been detected and updated in the ASM failure status. This message may seem alarming, but it's essential to investigate and address the underlying issue promptly. The failure could be related to a disk problem, space usage threshold exceeded, or data inconsistency. asm health checker found 1 new failures updated
The "1 new failure" message is just a summary. You must check the (and often the associated trace files) for the specific ORA- error codes following it. Look for: ORA-15032 : Not all alterations performed. ORA-15040 : Diskgroup is incomplete. ORA-15042 : ASM disk is missing from the group. 2. Check Disk and Disk Group Status The health checker uses this data to identify
This comprehensive guide will dissect every aspect of this error message. We will explore what the ASM Health Checker is, why it triggers this alert, how to diagnose the specific failure, and step-by-step remediation strategies. This message may seem alarming, but it's essential
The health checker identifies a specific occurrence (incident) of a broader problem, such as a lost disk or corrupted block.
Upon detection, the infrastructure often runs deeper health checks to look for data block, undo, or redo corruption.
ASM has internal I/O timers. If a disk consistently fails to respond within a threshold (e.g., _asm_io_timeout ), the health checker marks it as a slow or hanging I/O resource.