Reorg runs faster with less set-up. As a result, Reorgs take longer. Preparation time is longer. No ability to purge data during Reorg. Reorg-Inconsistent Data Ability to detect any inconsistencies between tablespaces and indexes with automatic user notification.
Inconsistent data goes unseen.
Never have to run a recover due to a failed Reorg. Must run recover when Reorg fails. Reorg-Image Copies Concurrent Copy comes as part of the Reorg. No need to run Image Copy before and after. Must run Image Copy before and after Reorg or make an inline or dirty Copy that cannot be used for recovery without modification.