Check Disk Group

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This action builds and submits an ALTER DISKGROUP CHECK... statement with FILE/DISK/ FAILGROUP/ALL and REPAIR options, letting you verify the internal consistency of disk group metadata.

Note: Before this object action is available you must have a direct connection to the ASM instance. For details, see Manage ASM Connection.

Platform Availability

To Verify Internal Consistency of Metadata for a Mounted Disk Group

  1. On a connected Oracle datasource, expand the Instance and ASM nodes.
  2. Right-click the Disk Groups node and select Create from the context menu.
  3. Use the following table as a guide to understanding and modifying settings in the dialog:
Step Settings and tasks

Action options

Repair - Select this check box to include a REPAIR clause, instructing Oracle to attempt to repair any errors found during the check. Deselect this check box to include a NOREPAIR clause.


Lists referring and referenced objects potentially impacted by the change. For details, see Dependencies.


Displays the DDL that will execute the object action. For details, see Preview.

4. Click Execute. For information on the scheduling option, see Scheduling.