to see how long you have to fix the issue before ASM automatically drops the disk. Oracle Forums When to Take Urgent Action External Redundancy
Use the following SQL command in the ASM instance to identify disks with red flags (e.g., OFFLINE , CLOSED , or MISSING ):
The alert is a critical notification from Oracle's Automatic Storage Management (ASM) health monitoring system . It typically appears in the ASM alert logs or via automated email notifications when a storage-related incident is detected. Failure Overview