Why to [b]BACKUP[/b] DB2 before migration

Does anybody know why a backup of the complete source database DB2 is required?
Reading this in the guidelines sounds to me like a little horror-scenario! Any experience? thanks

Hi Anthony,
There are no horror stories, don't worry! The OMWB will not make any modification to your source DB2 database. The suggestion to make a backup of your source database is simply a standard recommendation made to migrators since many people tend to modify source databases in preparation for a migration and the forget how to undo these changes, and also since we cannot be responsible for any problems that third party software (like drivers) can cause. We have never had the OMWB cause problems on the source database since it simply reads from the source and never tries to make any modifications.
I hope this helps,
Tom.

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Why to [b]BACKUP[/b] DB2 before migration

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