Asm Health Checker Found 1 New Failures Updated |verified| -

| Cause Category | Description | |---|---| | | Physical damage to storage media, hardware failures, or firmware bugs can lead to blocks being incorrectly written or overwritten. The health checker's metadata verification routines will catch these inconsistencies. | | Metadata Inconsistencies | ASM disk groups store critical metadata (pointers, allocation tables). If this metadata is corrupted due to an abrupt system crash or misconfiguration, the health checker will flag the issue. | | Disk Group Operational Issues | A disk being forcefully dropped, a disk group being dismounted uncleanly, or a failed rebalance operation can all leave the disk group in an inconsistent state. | | External Redundancy Limitations | Attempting to offline a disk in a disk group configured with external redundancy can trigger errors because the disk group lacks the mirrored copies necessary to maintain data integrity. |

If the disk group won't mount, use the kfed utility (e.g., kfed read ) to check for corrupted metadata or invalid disk headers.

: Adding disks to or resizing an ASM Cluster File System (ACFS) can sometimes trigger failures if voting files cannot be refreshed or membership refresh fails. Recommended Diagnostic Steps asm health checker found 1 new failures updated

SQL> ALTER DISKGROUP <disk group name> CHECK ALL REPAIR;

While Oracle performs default health checks, you should also schedule custom checks on a weekly or monthly basis. Use a script that runs ALTER DISKGROUP ... CHECK ALL NOREPAIR and logs the output for review. | Cause Category | Description | |---|---| |

The phrase is precise. It communicates three key pieces of information:

Set the home to the ASM instance, e.g., set home diag/asm/+asm/+ASM1 . If this metadata is corrupted due to an

This message typically follows explicit hardware or physical layer failures, such as an , an unclean disk group dismount , or corrupted disk headers . Immediate intervention is required to avoid localized instance crashes or complete cluster failure. Technical Context: How ASM Reaches This State

ALTER DISKGROUP <diskgroup_name> ONLINE ALL; ALTER DISKGROUP <diskgroup_name> CHECK;

You may notice your diskgroup resources in an INTERMEDIATE or OFFLINE state when this occurs. Common Causes 7 Diagnosing and Resolving Problems - Oracle Help Center

This article provides an in‑depth breakdown of the ASM Health Checker, the meaning of “found 1 new failures updated,” and a clear, step‑by‑step guide to diagnosing and resolving the underlying problem.