BE 2010 R3 - Time to complete full backup has over doubled
Using Backup Exec 2010 R3 on a Dell R710 with a 30 TB NAS. Full backups that were taking 24-30 hours to complete are now taking 70-80 hours. The jobs are completing successfully, just taking much longer. There are no error messages being generated and nothing in the Event Log on this or any of the servers being backed-up that point to a cause. There are 2 hotfixes for Backup Exec that I need to apply, but other wise everything is patched and up-to-date. Nothing has changed hardware-wise.
I have tried, unsuccessfully, to find information on the Symantec site and the Web. Any suggestions or insights would be appreciated.