Asm Health Checker Found 1 New Failures Updated Jun 2026

SQL> ALTER DISKGROUP <disk_group_name> CHECK ALL REPAIR;

BEGIN DBMS_SCHEDULER.CREATE_JOB ( job_name => 'WEEKLY_ASM_HEALTH_CHECK', job_type => 'PLSQL_BLOCK', job_action => 'BEGIN DBMS_HM.RUN_CHECK(''DB Structure Integrity Check'', ''WEEKLY_ASM_RUN''); END;', start_date => SYSTIMESTAMP, repeat_interval => 'FREQ=WEEKLY; BYDAY=SUN; BYHOUR=2; BYMINUTE=0;', enabled => TRUE ); END; /

The most common cause is a transient or permanent I/O failure on a specific disk within a Disk Group. If a disk is slow to respond, or if the underlying storage array reports a read/write error, ASM marks the disk as "offline" or flags the error. The "1 new failure" often refers to a specific disk in a failure group becoming inaccessible.

SELECT name, state, type, total_mb, free_mb, offline_disks FROM v$asm_diskgroup; asm health checker found 1 new failures updated

If the failure is directly related to storage, the ASM instance alert log will pinpoint the disk or group: $GRID_BASE/diag/asm/+asm/+asm1/trace/alert_+asm1.log Use code with caution. Step 2: Identify Common Causes of ASM Failures

Relying solely on the alert log to discover problems is reactive. A better approach is to ASM health using a combination of tools and automated checks.

SELECT NAME, PATH, STATE, MODE_STATUS FROM V$ASM_DISK; SELECT NAME, PATH, STATE, MODE_STATUS FROM V$ASM_DISK; If

If any new entry is found, your monitoring system can immediately page the on‑call DBA.

The phrase "asm health checker found 1 new failures updated" typically refers to a notification from the Oracle Autonomous Health Framework (AHF) or its components like

At first glance, this message can induce panic. Does it mean data loss? Is your disk group about to crash? Will your production database go offline? Fortunately, in most cases, this alert is a proactive warning from Oracle’s Automatic Storage Management (ASM) diagnostics framework. However, ignoring it can lead to severe performance degradation or service interruption. in most cases

If the underlying issue was a temporary glitch (e.g., a loose fiber cable or a brief network blip), the disk might still be repairable. If the OS can see the disk again, you may be able to issue:

Oracle Enterprise Manager exposes several ASM metrics that correlate with health checker failures:

Look for active rebalancing or recovery operations that may have been triggered by the failure.