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The Mirror object action lets you build and submit a DISK MIRROR command, creating a mirror that immediately takes over when the primary device fails.

Platform Availability

To Create a Database Device Mirror

  1. Initiate a Mirror action against a database device. For more information see Initiating an object operation.
  2. Use the following table as a guide to understanding and modifying settings in the Mirror wizard:
Step Settings and tasks

Action Options

Displays the database device you selected and lets you work with the following settings:

Mirror Name

Lets you specify the full path name of the database mirror device that is to be the secondary device.

Serial Writes

Lets you specify whether serial writes to the devices are enforced

Contiguous (VMS only)

If the mirror is a file rather than a device, this option forces the file to be created contiguously.


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/.

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