None of the files in the file list exist (Status Code 71)

Here is the link to the indepth troubleshooting guide for exit status 71's.  The guide was written for 5.1, but I beleive most of the advice is still pertinent through 6.5.

http://seer.entsupport.symantec.com/docs/277438.htm

is that backup selection part of a cluster that switches from time to time, or could it be the file is being re-written by a application ?

If you specify a file as selection and that file isn't there the backup will fail with status code 71. Try to specify the directory instead.

Couldnt he point NBU to a VIP and let the cluster software handle the failover?

Configure your policy for multiplestreams, later you will see where exactly is failing and ensure that file sysmte gets mounted on time or go to an exclude list. You can also see this under the logs, but the multiplestream will at least get you some data.

I am getting a status code 71 when backing up Microsoft Sharepoint.  I am backing up using the selection "Microsoft Sharepoint Resources".  It is telling me none of the files exist, but when I get with the sharepoint admin, the correct fiels are there.  Any Ideas?

 See this it may help you. its too easy

ftp://exftpp.symantec.com/pub/support/products/NetBackup_Enterprise_Server/278505.pdf