If the SQL diagnostics point to a disk or path failure, move to the operating system level:
Check for SCSI errors, link resets, or multipath flap events.
If a disk group reaches near-total capacity (e.g., 99% full) or a failure group violates redundancy requirements (e.g., missing mirrored extents), the health checker can classify this as a configuration failure.
SELECT group_number, name, path, state, failgroup, mode_status
FROM v$asm_disk
WHERE state != 'NORMAL';
This message comes from Oracle ASM (Automatic Storage Management) , typically when you run:
It indicates that the ASM health checker has detected one new failure in the ASM disk group’s redundancy or usability status since the last check, and that failure record has been updated in the ASM metadata or alert log.
Key points:
Prepared by: [Your Name/Role] Status: Awaiting resolution
Ensuring Database Security and Performance with ASM Health Checker
Automatic Storage Management (ASM) is a crucial component of Oracle databases, providing a robust and efficient storage management system. However, like any complex system, ASM can encounter issues that impact database performance and security. To identify and address these issues, Oracle provides the ASM Health Checker, a utility that monitors ASM's overall health and alerts administrators to potential problems. In this essay, we will discuss the importance of ASM Health Checker, its functionality, and what it means when it reports "Found 1 new failures updated."
The Importance of ASM Health Checker
ASM Health Checker is a vital tool for database administrators, as it helps ensure the reliability, performance, and security of the database. By regularly checking ASM's health, administrators can detect potential issues before they become critical problems, minimizing downtime and data loss. ASM Health Checker monitors various aspects of ASM, including disk availability, space usage, and data consistency. This proactive approach enables administrators to take corrective actions, maintaining optimal database performance and security.
How ASM Health Checker Works
ASM Health Checker runs periodically, typically as a background job, to assess ASM's overall health. It checks for issues such as:
When ASM Health Checker detects a problem, it updates the failure status and sends notifications to administrators.
Interpreting "Found 1 new failures updated"
When ASM Health Checker reports "Found 1 new failures updated," it indicates that a new issue has been detected and updated in the ASM failure status. This message may seem alarming, but it's essential to investigate and address the underlying issue promptly. The failure could be related to a disk problem, space usage threshold exceeded, or data inconsistency.
Upon receiving this message, administrators should:
Conclusion
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. asm health checker found 1 new failures updated
The coffee hadn’t even finished brewing when Sarah saw the notification on her primary dashboard: “ASM Health Checker found 1 new failure updated.”
In the world of database administration, "1 new failure" is rarely just a number; it’s a riddle. She logged into the terminal, the cursor blinking like a nervous heartbeat. As she ran the diagnostic tool, the system confirmed the dread: Disk Group 'DATA_01' was reporting a predictive failure on a single member.
She knew the routine. Oracle ASM is designed to handle this—it’s built for redundancy. But "1 failure" is the first domino. The Investigation
Sarah pulled up the alert logs. The health checker hadn't just found a flaw; it had flagged a PST (Parallel Server Tree) write failure.
The Symptom: One disk was lagging, its I/O response times ballooning into the hundreds of milliseconds.
The Automation: The health checker had already updated the status, signaling the ASM instance to prepare for a "drop and rebalance". The Turning Point
She watched as the background process, ARB0, 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.
ASM Health Checker Alert: Understanding and Addressing "1 New Failure Updated"
Introduction
The ASM (Automatic Storage Management) health checker is a crucial tool in Oracle databases that monitors and reports on the health of storage configurations. When the ASM health checker identifies issues, it alerts database administrators to take corrective action. One such alert is "asm health checker found 1 new failures updated," which indicates that a problem has been detected and updated in the ASM configuration. In this article, we will delve into what this alert means, its implications, and a step-by-step guide on how to address it.
Understanding the Alert
The ASM health checker periodically runs and checks for various conditions that could affect the performance, availability, or integrity of the storage. When it finds a new failure or an update to an existing failure, it logs an alert. The alert "asm health checker found 1 new failures updated" typically indicates:
Common Causes
Several factors can lead to this alert, including:
Implications
Ignoring this alert can lead to more severe consequences, including:
How to Address the Alert