If unwanted changes are recorded to a journal but not realized until a later time, you can backtrack to a time prior to when the changes were made by using the Remove Journal Changes (RMVJRNCHG) command provided by IBM. In order to use this command, your configuration must meet certain criteria including specific values for some of the data group definition parameters. For more information, see “Removing journaled changes” in the Assure MIMIX Operations book.