I have taken over a site and am in a cross-road situation as I am having a lot of issues with exchange so I need to find out the best solution for my client as I am weighing up costs and long-term security, redundancy and maintenance etc. They used to have 50-60 employees and now have reduced down to around 25-30 and don't plan on growing in the next 3-5 years. Users are based all around the world and these users only need access to emails and files.
Specs of the network:
1 x VM host (2008 Enterprise R2) Main role is Hyper-V which hosts 8 VM's
- Primary DC, DNS/DHCP, Exchange 2007, TMG 2007, print, cad licensing etc.)
1 x (2008R2) Secondary Domain controller, Veeam backup of VM's as a DR solution (not the best I know)
1 x Backup server (Backup Exec) which points to dell power vault tape drive.
We will be migrating to MS 365 & still need the other servers operational. Only problem is the hardware on the Host is starting to fail, raid batteries etc. The server is roughly 4 years old and am wanting to find out your thoughts if I should purchase a new maintenance agreement (about $2.5k per yr) or purchase a new server for redundancy.
I will be definitely be decommissioning the TMG and replacing with a SonicWALL.
I know this is a big question but any feedback would be greatly appreciated.
Thanks in advance.