I need to recreate our storage/backup plan. We have an sbs2003 domain controller running Exchange, Backup exec, bbs, storing user project folders on local data drive that is separate than the system drive, and is the dhcp server. This domain controller is running an Intel Xeon 3.00GHz and has 3 GB of ram, 40GB system drive, 100GB data drive(both HDD are filling up) . We also have sbs2003 on an application/file server for the software that 20 users in the office use daily. The application server has a xeon 1.86GHz 2GB of ram 200GB HDD(half way filled up from application data increasing) and basically shares all of the company application data. This is the most important information on the network. Neither one of these servers have redundancy so this must be addressed in the solution.
I also need to back up this data. Currently, are backup plan is not sound. We have one tape drive on the domain controller and need to backup 15 exchange mailboxes and all personal user files and all application data. Currently this is being split into 2 jobs and is a hassle to change tapes.
I feel like the domain controller is being beat on too much and currently if it goes down, the whole network goes down because nobody gets IP addresses from the dhcp server. Also, would it be wise to migrate to sbs2011?