asm health checker found 1 new failures
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Loss of access to a voting file or a failure to refresh voting files on a specific diskgroup.
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
To resolve the issue, follow these step-by-step instructions:
Process Crashes: Vital daemons like 'bd' or 'asm_config_server' failing to respond.
Look for the "Health Checker" section to see the red "Fail" status.
This command performs an in-depth analysis and actively attempts to repair any found corruption. Real-world examples confirm that executing this command effectively resolved the issue and cleared the alert.
: The diskgroup cannot maintain a read quorum, often leading to an automatic dismount. How to Diagnose and Fix To resolve the failure, follow these diagnostic steps:
Log into your ASM instance via SQL*Plus as SYSASM to assess the cluster-wide operational health of your storage:
Search for the timestamp of the alert. You will often see a corresponding ORA- error code (like ORA-15078 or ORA-15032 ) that provides the exact technical reason for the health check failure. 4. How to Resolve the Failure Scenario A: Disk Connectivity Issues
chown grid:asmadmin /dev/sdg chmod 660 /dev/sdg -- If persistent across reboot, fix udev rules: vi /etc/udev/rules.d/99-oracle-asm.rules -- Add: KERNEL=="sdg", OWNER="grid", GROUP="asmadmin", MODE="0660"
: A physical disk or a storage path (LUN) has become inaccessible. Forced Dismounts