I've recently inherited a multi office network. There's 30 something computers across the 5 branches, and four servers at the primary office building:
Server 2003 Box: Used to be the PDC, not sure if it was demoted properly. Currently stores files. Need to retire this server shortly as the hardware is quite old.
Server 2008 R2 Box #1: Currently running Exchange and PDC. Also runs Backup Exec to back up stuff. Used to be our SQL server as well (shudder) until the backup died and management knee jerked into a new server (see Box #3)
Server 2008 R2 Box #2: Runs Terminal Services for our remote users.
Server 2008 R2 Box #3: Runs MSSQL for our database applications.
I'm in the process of cleaning up this network - it has not been set up in a consistent fashion (for example, some people had a roaming profile, others did not. People have changed PC's, servers have been added, and for some reason the SQL server seems to think it's a domain controller as well).
In an ideal world, I would simply back up the information on all the servers, wipe them all, and start again the right way. But that's not feasible from a time or money point of view.
I want to ensure that this network is running as optimally as possible. Are there any pointers or guides people can suggest for me to read to help in cleaning up and administering my network?
(Apologies if this is a little broad, I'm feeling a little overwhelmed after finding the SQL server running as a domain controller - this makes no sense to me!)