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A folder named _backup folder should exist in the parent directory of the development or acceptance staging server the solution is being deployed to.
the main reasons for the decision are:
it reduces the possibility of accidentally deleting the backup folder.
it makes it easier to backup the files that are currently deployed without accidentally nesting the backup folder inside a backup.
_backup contain a subfolder with the application name.
If you don’t find
_backup folder on the parent of a development or acceptance staging server,
the subfolder for an application,
create them.
An example, \\ncrws499\catcappsx\Saf-Sec-Sur\2
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