Hello Pete,
The first thing, advance Open File Option is not at all recomended for backing up open Databases such as Exchange, SQL...etc. Its ment for OPEN Files and not OPEN Databases.
Seperate the SQL jobs with other server jobs, use AOFO on the other server jobs and do not use AOFO for SQL jobs.
Best Regards
Dev T
Global Enterprise Technical Support
Backup Exec for Windows Server
Symantec Inc.