I am looking for some guidance relating to the structure of our servers within the business.
The current hardware is hitting end of life early next year and my plan is to replace in the new year.
Current hardware is :-
Windows SBS Server 2003 - This runs our DC, AD, DNS, DHCP & SQL Server 2005.
Windows Storage Server 2003
PowerVault Tape backup.
As far as I understand, things have changed somewhat at Microsoft regarding server OS and licencing since SBS 2003, so this is where I would like some help.
Because SBS no longer exists, I take it that my best replacement structure would be to split the functionality across three physical servers.
Server 1 = Windows 2012 Server Essentials - Running as DC, DHCP, DNS & AD.
Server 2 = Windows 2012 Server Standard + Windows SQL Server 2012.
Server 3 = Windows 2012 Server Standard - Running as Storage Server
Our business has less than 25 users - it is possible we'd expand to more than 25 users over the next 6 years, but unlikely.
I am struggling to get my head around which is the 'best' way forward and also which is more cost effective.
Any help is appreciated and apologies if I have placed this question into the incorrect topic area.