Use the following procedure to discard an entire archived dataset, or a portion of an archived dataset. Datasets are automatically pruned according to the existing retention policy, but they can also be pruned manually. This process may take several minutes to complete, depending on the size of the dataset and the amount of pruning required. If you discard an entire dataset, the ON DISK size is zero. If you discard only a portion of the dataset, the ON DISK size is reduced. Note that datasets can only be pruned when they are active.
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