Policy Guide › Detecting Key Text › Searching Zip Files for Key Text › Nested Zip Files

Nested Zip Files

Zip files can contain nested zip files, and can even contain nested zip files which themselves contain further nested zip files! To recursively decompress, extract and search the content of documents archived inside these nested zip files can cause a performance slowdown.

To alleviate this problem, you can specify the maximum depth of nesting supported by CA Data Protection. To do this, you edit the Maximum Depth of Nested Zip Files and E-mails setting in the user policy System Settings folder.

For example, if you set a maximum depth of 2, CA Data Protection drills down two levels of nesting to analyze archived documents. In practice, this means it searches the text content of documents archived inside a zip file that is itself included in a master zip file. If CA Data Protection detects a further level of nesting, it does not search the documents archived inside this further zip file.

Note: This policy setting also covers emails embedded inside a master email.