How to Change the Interlace Value of Stripes in Mirrors (DiskSuite Tool)

Use this task to change the interlace value of a mirror's underlying submirrors which are composed of striped metadevices. Using this method does away with the need to recreate the mirror and submirrors and restore data.

To use the command line to perform this task, refer to the metadetach(1M), metainit(1M), and metattach(1M)man pages.

The high-level overview of the steps in this task are:

• Detaching submirror1

• Clearing submirror1

• Creating a new stripe, with the new interlace value, to be used as submirror1

• Attaching submirror1 to the mirror

• Waiting for the mirror resync to finish

• Repeating the above steps for submirror2

1. Make sure DiskSuite Tool is started.

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

   The object appears on the canvas.

3. Click inside the submirror to be detached.

4. Drag the submirror out of the Mirror object to the canvas.

   If this is a two-way mirror, the mirror's status changes to "Urgent."

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

6. Create a new submirror with the desired interlace value.

   Refer to "How to Create a Striped Metadevice (DiskSuite Tool)".

7. Drag the new Submirror object to the Mirror object. Then click Commit to commit the mirror.

   A mirror resync begins.

8. The Configuration Log shows that the mirror was committed.

9. Repeat Step 3 through Step 7 for the second (and possibly third) submirror in the mirror.