The CHECK ALL option validates both the disk group metadata and the individual files stored inside it.
adrci> set homepath diag/asm/+asm/+ASM1 adrci> show alert -p "message_text like '%ASM Health Checker found%'"
Disks in FAILED or OFFLINE state are probable culprits.
Significant performance degradation or I/O bottlenecks may also trigger warnings that require a manual Next Steps for Remediation Identify affected Diskgroup: V$ASM_DISKGROUP view for any group not in a Review ASM Logs: ADRCI tool show alert -p "message_text like '%error%'" to find the exact timestamp and error code. Validate Hardware: asm health checker found 1 new failures updated
: If the disk group is still mounted, manually trigger a metadata check: SQL> ALTER DISKGROUP CHECK ALL;
<GRID_HOME>/diag/asm/+asm/+<ASM>/alert/log.xml
Oracle frequently releases patches that improve the robustness of the Health Checker. The CHECK ALL option validates both the disk
After verification, if a corruption is confirmed, you can attempt to repair it automatically:
Oracle's Autonomous Health Framework (AHF) provides additional diagnostic tools that can assist support engineers in resolving complex corruption issues efficiently.
Look for messages like KFED-00322: Invalid content encountered during block traversal . 3. Recommended Resolution Steps Based on the nature of the error, follow these actions: Scenario A: Disk Header Corruption (KFED-00322) Validate Hardware: : If the disk group is
Oracle stores all health checker runs in dynamic performance views. To identify which health check reported the failure, query V$HM_RUN :
Configuring BIG-IP ASM system resource alerts using ... - My F5
ls -la /dev/oracleasm/disks/ # or ls -la /dev/mapper/
Once you have identified the specific health check run from the V$HM_RUN view, retrieve the full report: