Hello,
Append period will be 1 in both cases. However if the media becomes full before the backups are completed, then you will be required to provide Overwritable Media.
Logic: Append period will be 1 as it starts after the OPP. When the OPP ends you will be using the media the very next day for backup. Hence if the append period is 1 then it will append to that media.
However you will also need to keep in mind the duration of the job and then set the OPP and AP accordingly.
If you have any further queries, do revert.
Additional Information :
For information on the recent VERITAS Backup Exec security vulnerabilities, including links to the downloads for the necessary hotfixes, please refer to the following document:
Patch summary for Security Advisories VX05-001, VX05-002, VX05-003, VX05-005, VX05-006, VX05-007
http://seer.support.veritas.com/docs/277429.htm
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