Asm Health Checker Found 1 New Failures Updated ((new)) -

DBMS_HM.GET_RUN_REPORT('HM_RUN_361') Basic Run Information Run Name : HM_RUN_361 Run Id : 361 Check Name : DB Structure Integrity Check Mode : REACTIVE Status : COMPLETED Start Time : 2011-11-13 11:02:11.067000 -05:00 End Time : 2011-11-13 11:02:19.989000 -05:00 Error Encountered : 0 Source Incident Id : 0 Number of Incidents Created : 0 Run Findings And Recommendations Finding Finding Name : System datafile is old Finding ID : 362 Type : FAILURE Status : CLOSED Priority : CRITICAL Message : System datafile 1:'H:\<PATH.\SYSTEM.DATA1' needs media recovery Message : Database cannot be opened Finding Finding Name : Datafile is old Finding ID : 368 Type : FAILURE Status : CLOSED Priority : HIGH Message : Datafile 2: 'H:\<PATH>\UNDO.DATA1' needs media recovery

Remember: Ignoring the alert can lead to a cascade of failures, especially in lower redundancy configurations. With the diagnostic steps and remediation strategies provided in this guide, you can confidently resolve the alert and restore your ASM environment to full health.

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

When the health checker detects a problem, it updates the ASM alert log and sends notifications to the database administrators. asm health checker found 1 new failures updated

ASM> ALTER SYSTEM CHECK HEALTH;

The ominous log line indicates that the Oracle Automatic Storage Management (ASM) background monitoring system has detected an active problem within your storage tier. This alert is immediately appended to the ASM alert log ( alert_+ASM.log ). It often surfaces alongside an explicit storage operation disruption, such as a diskgroup forced dismount or a hardware-level I/O failure.

A specific block (often metadata blocks 0-250) becomes unreadable, triggering a health check failure. Hardware Timeout: DBMS_HM

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

: Use the ADRCI Command-Line Utility to view the full error stack surrounding the "1 new failures" message.

: 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) This alert is immediately appended to the ASM

If a disk group drops below its minimum redundancy requirement (e.g., losing a partner disk in normal redundancy), ASM will immediately dismount it to protect against split-brain scenarios or data corruption.

Once you have identified the source, choose the appropriate resolution path. Scenario A: Transient/Temporary Error (Safe Action)

Do not attempt ALTER DISKGROUP ... CHECK REPAIR unless you fully understand the implications.

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