How to Replace a Slice in a Submirror (DiskSuite Tool)

Use this procedure to replace a slice within a submirror with a new slice. The partitioning information for any disk used by DiskSuite should be saved in a safe place before any errors occur.

Before using this procedure, make sure the replacement slice has been correctly partitioned.

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 the errored Mirror object in the Objects list.

   The mirror appears on the canvas. The submirror displays the error status.

3. Point inside the Submirror object (Concat/Stripe object). Display the submirror's pop-up menu and select Info. View the size and condition of the slice.

4. Click Slices to open the Slice Browser.

   Locate an available slice of the same or greater size than the slice that needs replacing.

5. Drag the replacement slice from the Slice Browser to the stripe rectangle of the submirror object that contains the slice you are replacing.

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

   DiskSuite starts a resync of the replaced submirror.

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

8. Validate the data.

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   Note -

   When dragging the replacement slice to the object, be sure to point the cursor inside the rectangle that contains the device number of the errored slice, instead of other rectangles inside the Concat/Stripe object.

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