Conversion has the following side effects:

• Non-CDS disk group are upgraded by using the vxdg upgrade command. If the disk group was originally created by the conversion of an LVM volume group (VG), rolling back to the original LVM VG is not possible. If you decide to go through with the conversion, the rollback records for the disk group will be removed, so that an accidental rollback to an LVM VG cannot be done.

• Stopped, but startable, volumes are started for the duration of the conversion.

• Any volumes or other objects in the disk group that were created with the layout=diskalign attribute specified can no longer be disk aligned.

• Encapsulated disks may lose the ability to be unencapsulated.

• Performance may be degraded because data may have migrated to different regions of a disk, or to different disks.