• Is your SQL backup going to the local machine or to a network server? 

    We do our SQL Backups to a network server.  Every once in a while I get this same thing occuring--it errors out and it won't delete the file.  The server doesn't have the fastest disk subsystem and it typically happens when the network traffic is very high in this segment of the network.  Basically the network times out and as such returns an errocode to SQL and it fails the job. 

    Our solution for the time being is to keep an eye on it.  Longer term, we are ordering a machine with a much faster and larger disk subsystem. 

    SJ