Asm Health Checker Found 1 New Failures [verified] -

For the disk mentioned in the failure detail:

ASM Metadata (Disk headers, File Directory, Alias Directory) Disk Group health Process responsiveness asm health checker found 1 new failures

Look for MOUNTED state but with disks OFFLINE or UNUSABLE . For the disk mentioned in the failure detail:

Because the initial alert does not specify the exact nature of the failure, you must collect diagnostic details using Oracle’s command-line utilities. Check the Grid Infrastructure Alert Log query individual disk headers:

The "1 new failure" could represent dozens of distinct underlying issues. Based on real-world Oracle support cases, here are the top triggers:

Note: Replace the above with actual failure description from your ASM health checker output.

Verify if any groups show a state of DISMOUNTED . Next, query individual disk headers: