Cloning Space Considerations

Clones are space-efficient copies of a volume that can be used independently of the source volume. When created, they have the same settings as the volume from which they were created. Clones share blocks that are identical with the source volume, and only begin to use space when changes are made.

HPE recommends that you lower the reserve settings for clones. When determining the reserve settings, factors to consider include how long-lived the clone will be and how much the clone will vary from its source. For example, the reserve settings may not need to be very high if the clone is being run to test a new application against, will not be changed much, and will be deleted after the testing is complete.