Skip to content

Asm Health Checker Found 1 New Failures Updated

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:

Then the health checker will flag this as a new failure.

This will initiate a rebalance operation to resync the data. asm health checker found 1 new failures updated

  1. Drop the failed disk from the disk group: 
    ALTER DISKGROUP data DROP DISK data_0003;
  2. Add a new replacement disk: 
    ALTER DISKGROUP data ADD DISK '/dev/mapper/new_data_disk' NAME data_0003;
  3. Wait for rebalancing to complete.
  4. The health checker will update the failure count to 0 after the next validation cycle.

The Automation: The health checker had already updated the status, signaling the ASM instance to prepare for a "drop and rebalance". The Turning Point

health checker has detected a potential issue, such as disk corruption or a hardware-related failure group problem . In Oracle environments, this message often appears in the It sounds like you're referencing a log or

SQL> SELECT name, state, offline_disks FROM v$asm_diskgroup;.

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. Drop the failed disk from the disk group:

Ensuring Database Security and Performance with ASM Health Checker