-- Create a daily check script spool asm_health_report.html SELECT * FROM v$asm_health_check WHERE status='FAIL'; spool off -- Email the report via crontab or OEM.
Follow this structured approach to isolate and remediate the failure. 1. Identify the Failing Secret and Timestamp
: The most frequent cause is that one or more disks in a group are no longer reachable due to hardware failure, storage connectivity issues, or OS-level changes. asm health checker found 1 new failures
Recent changes that haven't propagated correctly across a cluster.
A structured approach is essential. Do not panic. Follow the diagnostic pathway that matches your environment. -- Create a daily check script spool asm_health_report
Run lsdg to confirm that all disk groups are properly mounted, displaying the correct usable capacity and balanced allocation units.
The alert typically appears in your Oracle ASM alert logs when the Automatic Diagnostic Repository (ADR) health monitor detects a critical issue during a maintenance task, such as a diskgroup rebalance or a disk add operation. Understanding the Failure Identify the Failing Secret and Timestamp : The
If this guide helped you resolve the issue, please share your experience or let others know which specific fix worked for you in the comments below.
The ASM Health Checker runs continuously within the background processes of an ASM instance to validate disk path availability, write timeouts, and metadata consistency.
:Verify the status of your disks and current operations:
If you manage Oracle Grid Infrastructure (GI) or a standalone Automatic Storage Management (ASM) instance, one notification can send a chill down your spine:
