Asm Health Checker Found 1 New Failures Updated Guide

-- Check Disk Group Status SELECT name, state, type FROM v$asm_diskgroup; -- Check Disk Health SELECT path, header_status, mode_status, failgroup, state FROM v$asm_disk WHERE state != 'NORMAL'; Use code with caution. 2. Analyzing the "1 New Failure" ASM failures are often caused by one of three things:

| Failure Type | Example | |-------------|---------| | | A disk in a disk group is offline or missing. | | Disk path error | Underlying LUN/device path inaccessible. | | Read/write errors | OS or storage reports I/O errors. | | Stale disk | Disk not synchronized with partner disks. | | Failure group issues | Entire failure group degraded. | asm health checker found 1 new failures updated

The alert log contains the chronological sequence of the failure. Navigate to your Grid ORACLE_BASE directory: $GRID_BASE/diag/crs/ /crs/trace/alert.log Use code with caution. -- Check Disk Group Status SELECT name, state,

Health checks detect file corruptions, physical and logical block corruptions, undo and redo inconsistencies, and data dictionary corruption. When any of these targeted validations fail, the Health Checker logs an entry into the ASM alert log ( alert_+ASM.log ) and, in many monitoring environments, triggers an Enterprise Manager (OEM) metric alert. | | Disk path error | Underlying LUN/device