Asm Health Checker Found 1 New Failures Updated ((exclusive)) 【1000+ Certified】

The "ASM Health Checker found 1 new failures" message is a serious indicator that your Oracle ASM disk group integrity is compromised. To effectively handle this situation:

When managing Oracle Automatic Storage Management (ASM), receiving an alert stating can be alarming. This message usually appears in the ASM alert log or Oracle Enterprise Manager (OEM) and indicates that the background health check process has detected a potential issue with the disk group structural integrity or a device, which requires immediate attention to avoid downtime.

In multipath environments (e.g., DM-Multipath on Linux, PowerPath on AIX), a loss of one path to a disk does not immediately offline the disk. However, the ASM Health Checker detects increased I/O latency or path errors and reports a new failure, even if the disk remains online. asm health checker found 1 new failures updated

This error typically appears when the ASM instance performs an internal check and encounters an issue that could lead to a disk group being forced to dismount. Why Did This Happen?

This alert is generated by the ASM health check background process. Unlike a hard crash, which stops operations immediately, this alert suggests a "soft failure" or a predictive failure that requires diagnosis before it escalates into data loss or downtime. The "ASM Health Checker found 1 new failures"

The "1 new failure" message is just a summary. You must check the (and often the associated trace files) for the specific ORA- error codes following it. Look for: ORA-15032 : Not all alterations performed. ORA-15040 : Diskgroup is incomplete. ORA-15042 : ASM disk is missing from the group. 2. Check Disk and Disk Group Status

. It means the internal health checker has identified a failure in a service or a violation that requires attention. Common Causes Service Instability : Critical daemons (like asm_config_server ) might have hung or crashed. Resource Exhaustion : The disk partition for logs ( In multipath environments (e

if using Normal/High Redundancy, though data is still at risk if a second disk fails. Recommended Repair ALTER DISKGROUP CHECK ALL REPAIR; to attempt an automated fix of identified corruptions. Common Failure Scenarios Disk Corruption:

Ultimately, the alert "ASM Health Checker found 1 new failures updated" serves as a testament to the resilience engineered into modern database systems. It represents a tiered defense mechanism where software monitors hardware, and automation supports human judgment. While the alert may induce a spike of adrenaline for the on-call engineer, it is a preferable alternative to the silence of an undetected failure. In the world of data storage, visibility is survival, and this alert ensures that no failure remains hidden in the dark.