I am interested in anyone out there that performs differential backups. We don't but I'm thinking of doing them. We perform full database backups every night and we perform transaction log backups daily every 15 minutes from 6:00AM through 10:00 PM. I was thinking that it may make sense to also add a differential backup at noon each day in the event that we would need to restore our full backup, then differential, then transaction log backups, rather than having to restore a large number of transaction log backups. Please let me know when/if you use differential backups and whether you think it makes sense. I'm mostly interested in your reasoning for using differential backups.