Possible diskgroup dismount or reduced redundancy if not addressed. Detailed Investigation Report Findings & Actions Primary Cause Often related to block corruption on an ASM disk or a failure group losing connectivity (e.g., hardware/HBA failure). Immediate Diagnostic Run the command ALTER DISKGROUP CHECK; to verify inconsistencies. Check the ASM for specific errors (like ORA-15130). Risk Level if using External Redundancy (no mirror).
Indicates a newly detected incident, such as a disk failure, a broken header (KFED-00322), or a metadata corruption. asm health checker found 1 new failures updated
A failing disk, bad sectors, or a disconnected storage path. Possible diskgroup dismount or reduced redundancy if not
Run the following SQL query within the SQL*Plus environment of the affected ASM instance to identify the disk group's operational mode: such as a disk failure