About the binary catalog format
The catalog in a binary file format has several advantages over the catalog in a text format:
The catalog is more compact. The binary representations of numbers, dates, and other information, takes up less disk space than the text representations.
The catalog is much faster to browse and search, especially for large file sizes.
The catalog supports alternate backup methods without the need to post-process images, which improve catalog performance for alternate backup methods.
The following points describe size the limitations that are associated with the binary catalog:
The maximum number of files that can be backed up per image:
(231) - 1 files = 2,147,483,647 files = 7FFFFFFF files
The maximum number of different user IDs and group IDs (combined):
(231) - 1 IDs = 2,147,483,647 IDs = 7FFFFFFF IDs
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