We have implemented an exchange 2010 server on a 2008 R2 box. For some reason, it seems that there is an excessive amount of log files on the hard drive at any given time. Usually anywhere between 10000-40000. We have to run a backup every two hours just to keep the disk space under control. This organization has about 60 mailboxes and a database at about 55gb. Why would transaction logs be written to the disk so freaquently?