The following are the different layout types:

• Concatenated to Striped

  For example, if you want to convert a concatenated volume on a single disk to a striped volume with two columns, you select striped and two columns in the Add Mirror window. The resulting volume has two mirrors or plexes - one is the original plex, and the second is a copy of the original volume striped across two disks. Thus, the entire volume requires a total of three disks. The volume's type is designated as Mixed. At this point, you can remove the original plex by deleting it with the Remove Mirror command. Now you have a striped volume in place of the concatenated one that existed before.

• Striped to Concatenated

  Changing a striped volume to a concatenated volume probably won't be done very often. Assume the example of an existing two-column striped volume. If you open the Add Mirror window and select the concatenated layout, the resulting volume involves three disks: The first two disks have the plex of the two-column striped original volume, and the third disk contains a concatenated plex of the volume. By removing the original plex, the volume now resides on one disk.

• Striped to Striped

  The purpose of converting a striped volume to another striped volume is to change the attributes of the volume (the stripe unit size and the number of columns) without having to recreate the volume.

  For example, you can convert a two-column striped volume to a three-column striped volume. First, you would select three columns in the Add Mirror window. The resulting volume would involve five disks: two disks for the original two-column striped plex and three disks for the new three-column striped mirror. Again, you can remove the original plex by deleting it with the Remove Mirror command, leaving only a three-column striped volume.