The message is not a death knell for your database. Instead, it is an early warning system that Oracle ASM has detected a single, specific anomaly in your storage infrastructure. By methodically examining the ASM alert log, querying the dynamic performance views, and investigating the OS/storage layer, you can quickly identify whether the issue is a transient path failure, an offline disk, or a more serious metadata corruption.
: Inconsistencies found during a rebalance or an manual ALTER DISKGROUP CHECK operation. asm health checker found 1 new failures updated
to check the status of your failure groups or disk redundancy? The message is not a death knell for your database
Immediate investigation is required to determine if the failure is physical (requiring hardware replacement) or logical (requiring resync). Ignoring this alert significantly increases the risk of a total storage outage. : Inconsistencies found during a rebalance or an
The "ASM health checker found 1 new failures updated" message indicates a potential issue with the ASM instance or one of its associated disks. By understanding the causes of ASM health checker failures and following a step-by-step troubleshooting guide, you can identify and resolve issues before they become critical problems. Regular monitoring and maintenance of ASM instances and disks can help prevent health checker failures and ensure optimal performance and stability of your Oracle database and storage environment.
Before making any changes, retrieve the trace file that corresponds to the background error. Look for lines right above the alert in your ASM alert log to identify the specific RBAL or GMON background trace file.