I manage a network for a local client of mine and they are interested in bringing e-mail in house utilizing the Small Business Server 2003 that is already in place mainly to cut down on the spam and increase productivity.
The server in question is by far the most widely used server within the network.
Here's a quick breakdown of the server:
The server is a white box that I inherited from the previous admin
AMD Athlon 64 3800+ Processor
1 GB Ram
2 160GB SATA Hard Drives with hardware Raid 1via motherboard
single 500 watt generic power supply
Applications on server:
Attendance Rx 2.0 - Time clock software
AVG Admin / Anti-virus
Filezilla Server - used to accept backup's from our linux box and replicate to our SonicWall 4440i CDP
Spectorsoft Spector 360
Live Communications server 2005
Occasionally used for WireShark
Used heavily for Remote Web Workplace and I suspect Outlook mobile once exchange has been implemented
Used heavily as a file server as well
The server plays all the roles of a SBS with the exception of Exchange.
Now here is where my question comes.
Before I bring the email in house I would like to upgrade the server as far as hardware fault tolerance. I'm looking for suggestions on a raid 5 possibly and possibly speeding the whole machine up without doing a total rebuild.
Also is it possible to point the domain's secondary MX record to a shared hosting account with a catch all in case the server were to crash?
In addition to this multi part question the network will also be serving remote branches. What is the best way to serve exchange across a site to site VPN utilizing SonicWall TZ-170's at each end.
Please keep in mind that after Exchange implementation my client will begin to bring other Exchange oriented services into place. IE: unified messaging, unified fax collaboration.
I will also need a solution for a spam filter. Previously I have used the ORF (open relay filter) from http://www.vamsoft.com
and I like it being easy to use and pretty inexpensive but I would like more control.
I have used SonicWall's hardware spam solution in the past with great success but I'm attempting to do this on a "light" budget. Any suggestions here would be greatly appreciated.
A bit about the network it self.
All locations utilizing a dynamic T-1
The home office uses a TZ-170 as the Gateway/router/firewall
A netgear managed switch handles the traffic
Sonicwall 4440i CDP handles all backups
MS server 2003 std is utilized for terminal services
I'm looking for any opinions on the best way to implement this correctly without costing my client a lot of money and provide SOME email fail over.
I know this is a very long multi part question so I will be offering 500 points to a great answer / opinion.
Thank you in advance for any replies!