How to Replace a Submirror (DiskSuite Tool)

To replace an entire submirror, first construct a new stripe or concatenation that is equal to or greater than the size of the submirror that is being replaced. The slice(s) used for the replacement submirror should be on different controllers than the other submirror. Refer to Chapter 2, Creating DiskSuite Objects for instructions on how to create a stripe or a concatenation.

1. Make sure you have met the prerequisites ("Prerequisites for Maintaining DiskSuite Objects"), and have read the overview ("Overview of Replacing and Enabling Slices in Mirrors and RAID5 Metadevices") and the preliminary information ("Preliminary Information For Replacing and Enabling Slices in Mirrors and RAID5 Metadevices").

2. Double-click an errored Mirror object in the Objects list.

   The mirror appears on the canvas.

3. Double-click the Concat/Stripe object in the Objects list that will replace the submirror.

   The object appears on the canvas.

4. Drag the Concat/Stripe object to the top of the submirror that is being replaced.

   The new Concat/Stripe object replaces the errored one.

5. Click the top rectangle of the Mirror object then click Commit.

   A resync of the new submirror is initiated.

6. To verify that the mirror was committed, display the Configuration Log.

7. Validate the data.

8. [Optional] Delete the replaced Concat/Stripe object.