Asm Health Checker Found 1 New Failures Updated -

“ASM health checker found 1 new failures updated” = ASM detected a fresh failure and logged it.
It does not automatically mean data loss — but you must investigate immediately, identify the failing disk/group, and repair it before redundancy is lost.

If you need help decoding specific failure codes from the ASM alert log, paste the relevant lines (sanitized) for further assistance.

It sounds like you're referencing a log or output from an ASM health check (likely Oracle Automatic Storage Management). A useful review would typically include:

If you share the actual failure text or log snippet, I can help interpret it and recommend next steps.

The message "ASM Health Checker found 1 new failures" typically appears in the Oracle Automatic Storage Management (ASM) alert log when a critical issue—such as a disk failure or a forced diskgroup dismount—is detected. This is part of Oracle's fault diagnosability infrastructure designed to capture diagnostic data at the first sign of trouble. Immediate Actions to Take

If you see this message, follow these steps to identify and resolve the failure:

Check the ASM Alert Log: Review the alert log (often located in /u01/app/grid/diag/asm/+asm/+ASM/trace/alert_+ASM.log) for errors preceding the health checker message, such as ORA-15130 (diskgroup being dismounted) or ORA-15032.

Run ADRCI: Use the ADR Command Interpreter (ADRCI) to view the specific "incident" or "problem" that was logged. Command: adrci> show problem or adrci> show incident

Verify Diskgroup Status: Log into the ASM instance and check if any diskgroups are offline or if disks have been dropped. SQL> select name, state from v$asm_diskgroup;

SQL> select name, header_status, mode_status from v$asm_disk;

Investigate I/O Failures: Look for hardware-level issues, such as storage path failures, SAN/NFS connectivity problems, or OS-level permission changes that might have caused the disk to go offline. Common Causes

Disk Path Failure: The OS can no longer see the physical storage device.

Forced Dismount: ASM may force a dismount if too many disks in a failure group are lost, exceeding the redundancy limit.

Communication Issues: In a RAC environment, network or heartbeat failures between nodes can trigger ASM health alerts.

For automated assistance, you can use tools like Oracle ORAchk to run a comprehensive health check on your entire Oracle stack.

Understanding the "ASM Health Checker Found 1 New Failures" Alert

Receiving the alert "ASM Health Checker found 1 new failures" in your Oracle Automatic Storage Management (ASM) alert log is a critical signal that the system has detected a problem—often related to disk accessibility or disk group integrity.

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 message is a summary alert generated by Oracle's health monitoring. Common triggers include:

Disk Connectivity Issues: A LUN or physical disk has become inaccessible due to storage network (SAN) or hardware failure.

Missing Disks: ASM cannot find a disk that is expected to be part of a disk group.

Redundancy Failures: In "Normal" or "High" redundancy groups, the failure of a disk or a whole failure group can trigger this checker.

Data Corruption: Specific block corruption within a disk group. Step-by-Step Response Plan 1. Analyze the Alert Log

The "1 new failure" message is just a summary. You must check the ASM alert log (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

ASM resilvering – or – how to recover your crashed cluster

The message "ASM health checker found 1 new failures updated" typically appears in the Oracle Automatic Storage Management (ASM) alert logs when a background check detects a serious issue with disk group availability or redundancy.

A formal review of this failure should include an investigation of the root cause and an immediate assessment of data risk. Initial Assessment & Risk Level

High Priority: This message often precedes a disk group going into an INTERMEDIATE or OFFLINE state.

Data Integrity Check: If you are using External Redundancy, a single disk failure can make the entire disk group unrecoverable ("toast").

Redundancy Impact: In Normal Redundancy setups, the system may still be running but is now vulnerable to a second failure until full redundancy is restored. Failure Review Checklist To conduct a thorough review, perform the following steps: Identify the Specific Failure

Check the ASM alert log for accompanying error codes (e.g., ORA-15000 to ORA-15999).

Look for "Write Failed" or "I/O error" warnings to see if a physical disk has dropped. Verify Disk Status

Run crsctl stat res -t to check if disk group resources are in a STABLE or INTERMEDIATE state.

Query V$ASM_DISK to find disks with a status of OFFLINE or HUNG. Analyze Metadata Health asm health checker found 1 new failures updated

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

Check REQUIRED_MIRROR_FREE_MB. If your usable space is negative, the system may not have enough room to rebalance data and restore redundancy after this failure. Recommended Actions

If a disk is missing: Verify physical hardware or multipathing configurations to ensure the device path (e.g., /dev/sdg1) is still visible to the OS.

If space is low: Avoid adding more data until the failure is resolved, as further writes may lead to ORA-15041 (disk group out of space).

For permanent failures: You may need to drop the failed disk and add a replacement, then monitor the ARB0 background process to ensure a successful rebalance. KB88485 - My Oracle Support

Conclusion

The "asm health checker found 1 new failures updated" alert requires immediate attention to prevent data loss, performance degradation, or system downtime. By understanding the cause, taking corrective action, and implementing preventive measures, database administrators can ensure the reliability and performance of their Oracle databases. Always refer to Oracle documentation or consult with Oracle Support for specific guidance tailored to your environment.

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.

The Automatic Storage Management (ASM) health check utility has identified 1 new failure since the last successful check. This report details the failure and recommended actions.

Introduction
The message "ASM health checker found 1 new failures updated" signals that a monitoring component (an ASM health checker) has detected and recorded a newly identified failure in a system. This brief notification encapsulates operational realities—detection, state change, and the need for response—and invites examination of its technical meaning, potential causes, implications, and recommended actions.

What the message means

Possible contexts and specific interpretations

Likely root causes (examples)

Operational impacts

Recommended immediate steps (triage checklist)

Longer-term remediation and prevention

Communicating about the incident

Conclusion
The single-line notice "ASM health checker found 1 new failures updated" is a prompt to investigate. While one new failure may be harmless in a fault-tolerant system, it can also be the first sign of worsening conditions. Rapid, evidence-based triage followed by durable fixes and improved monitoring reduces risk and operational burden.

The Canary in the Coal Mine: Interpreting the ASM Health Checker Alert

In the complex ecosystem of modern enterprise computing, the Oracle Automatic Storage Management (ASM) layer serves as the critical bridge between the database software and the physical storage hardware. It is the circulatory system of the data center, managing the flow of information to the disks. Within this high-stakes environment, the alert message "ASM Health Checker found 1 new failures updated" is rarely a trivial notification. It is a digital pulse check—a signal that the system’s automated immunity has detected an anomaly that requires immediate human intervention.

To understand the gravity of this specific alert, one must first understand the role of ASM. ASM abstracts the raw complexity of disk management, providing a streamlined interface for the database. However, because it sits so close to the hardware, any instability in ASM translates directly to instability for the database itself. The "Health Checker" is a diagnostic routine designed to probe this abstraction layer. Unlike a simple "disk full" warning, which is binary and static, the Health Checker performs a dynamic analysis of the ASM instance’s integrity. It looks at disk group compatibility, attribute consistency, and the structural soundness of the storage metadata.

The phrasing "found 1 new failures updated" is precise and deliberate in its technical syntax. It implies a delta—a change in status. It does not merely say "failure," but rather "new failures," suggesting that the system has transitioned from a healthy state to a degraded one in real-time. This distinction is vital for a Database Administrator (DBA). It transforms the alert from a general status report into a timeline of an incident. The inclusion of the word "updated" suggests a persistent issue that the system has logged, tracked, and perhaps attempted to remediate automatically, but has now escalated for human review. “ASM health checker found 1 new failures updated”

The potential causes for such an alert are numerous, ranging from the benign to the catastrophic. It could be a transient I/O error caused by a hiccup in the storage area network (SAN), or it could be the early warning sign of a physical disk sector corruption. In some cases, it may relate to a mismatch in ASM attributes following a patch or a configuration drift. Regardless of the root cause, the Health Checker acts as the canary in the coal mine. By flagging the failure before the database crashes or data is corrupted, it provides the invaluable commodity of time.

However, the existence of the alert raises a philosophical question about the nature of modern system administration: the reliance on automation. The ASM Health Checker is an automated agent. It runs silently in the background, parsing logs and checking parameters. When it outputs this alert, it is effectively handing off responsibility. The system has detected a fault that it cannot resolve on its own. This moment defines the role of the modern DBA—not as a mere operator who restarts services, but as a diagnostician who must interpret the automated findings.

When a DBA sees "ASM Health Checker found 1 new failures updated," the response must be methodical. Panic is the enemy; the alert is a tool, not an accusation. The administrator must query the V$ASM_HEALTH view or check the alert logs to pinpoint the specific component that triggered the failure. Was it a rebalance operation that failed? Is a disk currently offline? Is there a quorum failure in a clustered environment? The alert is the starting gun for a forensic investigation.

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.

Instant Fix for Oracle ASM Disk Failures The message ASM Health Checker found 1 new failures means the Oracle ASM background diagnostic engine detected a serious disk, disk group, or storage accessibility issue. When this error appears in the ASM alert log, it is usually preceded by underlying I/O dropouts or timeout warnings. This requires immediate DBA intervention to prevent data loss or complete cluster eviction. 🛠️ Root Causes of the ASM Failure Alert

The Oracle Automatic Storage Management (ASM) Health Checker periodically polls the storage environment's overall health. Below are the most common scenarios that trigger this alert:

Storage Path & Multipath Failures: Intermittent loss of connectivity to the SAN/LUNs causes heartbeat timeout warnings (e.g., Waited 15 secs for write IO).

Partner Status Table (PST) Corruption: Too many offline disks in the PST disable the read quorum, triggering a forced dismount.

I/O Timeouts: Slow response times from the storage subsystem cause the Oracle ASM instance to drop the impacted disks.

Storage Configuration Drift: Re-scans, OS reboots, or sector size changes (ORA-15085) on the SAN break the shared storage layer. 📋 Comprehensive Troubleshooting Guide

When your ASM instance registers a failure, use this sequence of administrative tasks to evaluate and fix the problem. 1. Locate the Relevant Trace Files

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.

# Locate your ASM Alert log using the ADRCI tool adrci> show alert -p "message_text like '%ASM Health Checker%'" Use code with caution. 2. Verify Your Current Disk Group Status

Run the following SQL query within the SQL*Plus environment of the affected ASM instance to identify the disk group's operational mode:

SELECT group_number, name, state, type, total_mb, free_mb FROM v$asm_diskgroup; Use code with caution.

MOUNTED: The disk group is normal; the issue might be confined to a single disk.

DISMOUNTED: The disk group has dropped offline. This indicates a loss of disk quorum. 3. Check for Ongoing Rebalance Operations

A manual or automatic rebalance may clear the problem if the disk group maintains redundancy. Check the background work status:

"ASM Health Checker found 1 new failures updated" typically indicates that an automated diagnostic system has detected a potential issue within an Automatic Storage Management (ASM) environment

. Depending on your specific infrastructure, this usually refers to either F5 BIG-IP Application Security Manager (ASM) Oracle Automatic Storage Management (ASM) 1. F5 BIG-IP ASM (Application Security Manager) In the context of F5, this message likely stems from the BIG-IP system health monitoring

. 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 (

) may be full, preventing new security events from being recorded. Configuration Mismatches

: A recent policy update or "Check for Updates" for attack signatures might have failed. Recommended Actions Check Daemons tmsh show sys service asm to ensure all core services are running. Review Logs /var/log/asm /var/log/ltm for specific error codes. Restart Services : If services are hung, use pkill -f asm_config_server (restarting these generally does not impact live traffic). 2. Oracle ASM (Automatic Storage Management)

If you are running an Oracle database, this alert typically comes from the Fault Diagnosability Infrastructure Health Monitor , which detects corruption or hardware failures. Oracle Help Center

Troubleshooting "ASM Health Checker Found 1 New Failures Updated"

If you are an Oracle Database Administrator, seeing the alert "ASM Health Checker found 1 new failures updated" in your logs or monitoring dashboard (like Enterprise Manager) can be a bit jarring. This message is the Oracle Automatic Storage Management (ASM) framework’s way of telling you that its internal diagnostic engine has detected an issue that could compromise the health of your storage layer.

Here is a deep dive into what this error means, why it happens, and how to resolve it. What is the ASM Health Checker?

The ASM Health Checker is a proactive diagnostic utility that runs within the Oracle Grid Infrastructure. It constantly monitors the state of ASM disk groups, metadata consistency, and background processes.

When it detects a discrepancy—such as a corrupted metadata block, a disk timeout, or an offline disk—it logs a "failure." The "Updated" status usually means the health check engine has refreshed its findings and confirmed that the issue is persistent and requires administrator intervention. Common Causes for This Alert

While the message itself is a general notification, the "1 new failure" usually stems from one of the following:

Disk Connectivity Issues: A physical disk or LUN has become unreachable or is experiencing intermittent latency.

Metadata Corruption: Inconsistency in the ASM Allocation Units (AU) or disk headers.

Disk Group Imbalance: A rebalance operation failed or was interrupted, leaving the disk group in a "degraded" state. If you need help decoding specific failure codes

Offline Disks: A disk was dropped or taken offline due to I/O errors, but the redundancy (if using Normal or High redundancy) kept the database running. Step-by-Step Resolution Guide 1. Identify the Specific Failure

The alert message is just the "headline." You need to find the specific error code (like ORA-15032 or ORA-15078).

Check the Alert Log: Navigate to your ASM diagnostic trace folder and check the alert_+ASM.log.

Use ADRCI: Run the command adrci and use show alert to see the most recent incidents and their specific impact. 2. Query the ASM Views

Log into your ASM instance via SQL*Plus (sqlplus / as sysasm) and run the following to see the status of your disks:

SELECT group_number, name, state, type FROM v$asm_diskgroup; SELECT path, header_status, mode_status, state FROM v$asm_disk; Use code with caution.

Look for any disks where the header_status is CANDIDATE (instead of MEMBER) or mode_status is OFFLINE. 3. Check for Ongoing Rebalances

Sometimes the health checker flags a failure if a rebalance is stuck. SELECT * FROM v$asm_operation; Use code with caution.

If an operation is hanging, you may need to investigate the underlying I/O subsystem. 4. Run a Manual Check (The "Check" Command)

You can force ASM to verify the consistency of a disk group to see if it clears the error or provides more detail: ALTER DISKGROUP CHECK ALL; Use code with caution. Proactive Tips to Prevent Future Failures

Monitor I/O Latency: Often, the health checker finds a "failure" simply because a storage array is too slow. Monitor your OS-level tools like iostat or sar.

Update Grid Infrastructure: Ensure you are on the latest RU (Release Update), as Oracle frequently releases patches for ASM Health Checker "false positives."

Verify Redundancy: Always ensure your critical disk groups are at least on "Normal" redundancy to allow the health checker to find and fix issues without taking the database offline.

The "ASM Health Checker found 1 new failures updated" alert is a call to action. It usually indicates a physical storage hiccup or a metadata inconsistency. By checking the ASM alert logs and querying v$asm_disk, you can usually pinpoint the culprit disk and bring it back online or replace it before a total outage occurs.

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.

Once you have resolved the immediate issue and the message "ASM Health Checker found 1 new failures updated" no longer appears, implement these preventive measures.

Prepared by: [Your Name/Role] Status: Awaiting resolution

ASM Health Checker alert "found 1 new failures updated" typically indicates that the BIG-IP system's internal monitoring has detected a specific resource or service failure within the Application Security Manager (ASM)

. This is often triggered when a monitored resource crosses a predefined threshold or a critical daemon stops responding. Immediate Review Checklist To review and resolve this failure, follow these steps: Identify the Failure Source : Navigate to Security > Reporting > Settings > ASM Alerts

in the Configuration utility. This screen displays which specific health alert was triggered (e.g., CPU usage, memory limits, or database connectivity). Check Daemon Health : Verify if critical ASM processes like asm_config_server are running. You can check this via the command line using tmsh show /sys service Investigate Recent Changes

: Review the audit logs for recent maintenance activities, such as software upgrades, re-licensing, or configuration loads, which are common triggers for ASM health failures. Examine MySQL Database Status

: ASM relies heavily on an internal MySQL database. Check for database corruption or space issues by running tmsh load sys config verify or reviewing /var/log/asm for SQL-related errors. Utilize iHealth Diagnostics : Generate a file and upload it to the F5 iHealth portal

. This will automatically compare your system state against known bugs and best practices to pinpoint the exact failure. Common Root Causes

Configuring BIG-IP ASM system resource alerts using ... - My F5

The message "ASM Health Checker found 1 new failures updated" is a critical alert typically found in the Oracle Automatic Storage Management (ASM) alert logs. It indicates that the Oracle Fault Diagnosability Infrastructure has detected an issue—such as metadata corruption or disk accessibility problems—and has created an "incident" for further investigation. What This Failure Means

When this message appears, it usually follows a specific event like adding a disk, a rebalance operation, or a diskgroup dismount. The "failure" refers to an entry in the Automatic Diagnostic Repository (ADR), which tracks critical errors that could impact data availability.

Incident Detection: The health checker identifies a specific occurrence (incident) of a broader problem, such as a lost disk or corrupted block.

Automatic Analysis: Upon detection, the infrastructure often runs deeper health checks to look for data block, undo, or redo corruption.

Resource State: 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