user wants a detailed article about the ASM Health Checker notification "found 1 new failures updated". This requires explaining what ASM Health Checker is, the meaning of the notification, common causes, troubleshooting steps, and its role in wider monitoring. I will follow the search plan, opening the initial result to understand ASM Health Checker basics, then performing the specified searches. initial open of the Oracle documentation failed. The search results provided some useful links. The search for "ASM Health Checker found 1 new failures updated" yielded a potentially relevant result. The search for the meaning of "1 new failures" also yielded a potentially relevant result. The search for ASM Health Checker failure disk group status yielded a potentially relevant result. The search for V$ASM_HEALTH_CHECKER view Oracle did not yield a specific view. The search for best practices and monitoring alerts yielded some relevant results. The search for documentation site:oracle.com yielded some results. I will now open the most promising links. opened links provide useful information. The techdatabasket article gives a practical example. The CSDN article provides details on checker failure detection. The FlashGrid page lists ASM disk group checks. The Oracle documentation is a reference manual. The AHF release notes mention ASM disk group status. The Cleverence article explains Oracle Health Monitor. The Veritas page mentions ASMInst agent health check monitoring. The BMC page describes ASM alert log. The Oracle PDFs provide information on viewing checker findings. I have enough information to draft an article. The user's request is to "write a long article". I will structure the article with an introduction, explanation of the health checker, common causes, step-by-step troubleshooting, and prevention tips. monitoring a production Oracle Database—especially in a Real Application Clusters (RAC) environment—alert logs can contain many different messages. Among the most important ones for an Automatic Storage Management (ASM) administrator is: "ASM Health Checker found 1 new failures updated"
Ignoring the "ASM health checker found 1 new failures updated" message can have serious consequences, including:
If the health check report identifies a repairable problem—such as a minor metadata inconsistency—the safest first step is to attempt an automated repair. Use the REPAIR clause with the ALTER DISKGROUP command: asm health checker found 1 new failures updated
ASM Health Checker is a valuable tool for ensuring the health and performance of Oracle databases. By regularly monitoring ASM's health, administrators can detect potential issues before they become critical problems. When ASM Health Checker reports "Found 1 new failures updated," it's essential to investigate and address the underlying issue promptly to maintain optimal database performance and security. By doing so, administrators can ensure the reliability and integrity of their databases, protecting critical data and applications.
Disks in FAILED or OFFLINE state are probable culprits. user wants a detailed article about the ASM
She watched as the background process, , kicked into gear. The data began its silent migration, flowing away from the dying hardware and onto the healthy disks in the group. The "1 failure" was no longer a threat; it was a task being solved by the very software that discovered it.
: Inspect the ASM instance alert log (usually found in the Automatic Diagnostic Repository or ) for specific error codes like (disk full) or (disk group mount failure). Verify Disk Status asmcmd lsdsk initial open of the Oracle documentation failed
ASM Health Checker Found 1 New Failure: A Comprehensive Guide to Diagnosis and Resolution
The ASM Health Checker is an automated diagnostic feature introduced to monitor the integrity and consistency of ASM disk groups, which are the fundamental storage units in ASM. When the Health Checker detects an anomaly in a disk group—such as metadata corruption, a disk block inconsistency, or a missing file—it logs a message in the ASM alert log. The specific alert "ASM Health Checker found 1 new failures updated" indicates that the health checker has detected one new issue during its latest automatic scan that wasn't present previously.
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A logical inconsistency in the ASM disk group headers. 2.1 Viewing the Failure Details Oracle provides a specific view to look at check failures: SELECT * FROM v$asm_check_failure; Use code with caution.