A storage profile is not required to create an archive file, but is required to automatically create a duplicate archive file, to copy an archive file to a backup device, or to maintain a retention policy. You can define and save a set of storage parameters as a storage profile.
A storage profile is referenced by an archive request and includes:

Enter an optional description for the storage profile.
Provide size limitations for archive file segments stored on fixed or secondary media (for example, tape). An archive file that is larger than the space limitation for the target media must be segmented to span volumes. The size limitations in the storage profile override any default size limitations for segments set in personal options.
When creating primary and duplicate archive files on media of different types, the lesser value is used for both files. For example, if the target media for the primary file is a zip disk (with a segment size of 100), and the target media for the duplicate file is fixed media (with a segment size of 0), 100 is the segment size for both the primary and duplicate files. (A value of 0 indicates no limit.)
The naming convention for file segments is:
arcfilename_1.af, arcfilename_2.af, (... arcfilename_n.af), arcfilename.af
The name of the last segment is the file name specified in the archive request. For example, when creating an archive file named c:\arch\archtest.af in three segments, the segment names are as follows:
c:\arch\archtest_1.af (segment 1)
c:\arch\archtest_2.af (segment 2)
c:\arch\archtest.af (segment 3)
Select this check box to display the Duplicate Copy tab. Use the Duplicate Copy tab to provide parameters for creating a duplicate archive file. The check box is cleared by default.