: In "Normal" or "High" redundancy groups, the failure of a disk or a whole failure group can trigger this checker.
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 asm health checker found 1 new failures updated
Navigate to your ASM diagnostic trace folder and check the alert_+ASM.log . : In "Normal" or "High" redundancy groups, the
Automatic Storage Management (ASM) is a vital component of Oracle databases, responsible for managing storage resources and providing a layer of abstraction between the database and the underlying storage devices. The ASM health checker is a built-in tool that monitors the health and performance of ASM instances, alerting administrators to potential issues before they become critical problems. The ASM health checker is a built-in tool
If the disk group won't mount, use the kfed utility (e.g., kfed read ) to check for corrupted metadata or invalid disk headers.