Database Error Messages

OCI-15130

Disk group "diskgroup_name" is in the process of being dismounted.
  • diskgroup_name: The name of the disk group that is in the process of being dismounted.

Cause

The disk group is in the process of being dismounted either by request or because an I/O error is encountered that cannot be handled by taking the disks offline. A disk cannot be offlined when doing so results in all copies of a redundant extent being unavailable.


Action

Repair the hardware problem and remount the disk group. Refer to the alert log to determine which disks are failing.