You should probably back up from a snapshot, which avoids open file issues. See Paul Benn's NT backup paper for an example of this:

http://www.netapp.com/tech_library/3052.html

Note particularly section 5.

Mark Muhlestein -- mmm@netapp.com

-----Original Message----- From: James R Grinter [mailto:jrg@acm.org] Sent: Thursday, September 14, 2000 2:04 PM To: Clarke, John L. (CIS) Cc: 'toasters@mathworks.com' Subject: Re: Using Omniback for CIFS backups -Reply

On Thu, Sep 14, 2000 at 08:40:56AM -0400, Clarke, John L. (CIS) wrote:

The only problem is that Omniback seems to skip about 25% of the data, with no error messages or anything. Using the regular Backup software that comes with NT works fine.

People tell me (I have to take their word for it - I'm not familiar enough with the product) that Omniback doesn't like to back up files that are open, so anyone with their Outlook, Word, or Excel apps open with files being edited over night are probably being missed.

That theory is pretty easy to test - see what files aren't being backed up.

James.