The incremental and differential backups of Linux servers using the Agent for Linux take long time even when no files are being backed up during the backup job. This issue is observed when a lot of files and directories on the Linux servers are backed up in a full backup job.
A hotfix is now available for this issue in the current version(s) of the product(s) mentioned in this article. Refer to the Hotfix link under Related Documents at the end of this article to obtain the hotfix needed to resolve the issue.
Backup Exec 2012 Rev 1798 Service Pack 4 (TECH212772).