HP SureStore E SAN Manager LUN Management Administrator's Guide

126 Reconfiguring the Existing Mirror Set
Note When you remove a partition from the database mirror set, the partition type
changes from database to free space. If you have a single-partition mirror set,
you cannot remove the database partition.
To Add a Partition to the Mirror Set:
1. Choose Database  Database Mirror Set.
2. Create a database partition (page 138).
Note If you already have an existing mirror set of three devices, you must remove a
device before you can add one to the mirror set.
3. In the Database Partitions pane, select the new partition and click the Add Partition
to Mirror Set button.
4. Click the Close button.