Hello Simon,
Thanks for your post and others' good suggestions.
First of all, I still would like to suggest you try to optimize the "old" SBS 2003 server and improve its capacity and performance if Exchange storage is the ONLY bottleneck. Here is an article about
how to increase the Exchange 2003 private mail store size you may have a look:
Step-by-Step Guide to Increasing the Exchange 2003 Private Mail Store Size on Windows Small Business Server 2003
http://technet.microsoft.com/en-us/l...08(WS.10).aspx
However, if you have decided to migrate to new SBS 2008 with 64 bit platform including Exchange 2007 Standard, I agree with others' good advice.
Essentially there are no limits to the Exchange Server 2007 Standard Edition database size. By default, Exchange 2007 SP1 sets a limit of 250 GB that can be changed if needed. Also note that you
can have up to 5 storage groups with a maximum of 1 database per group, meaning that you can have up to 5 databases. In SBS 2008 we use 2 storage groups (2 databases) by default.
Realistically, database performance is dependent on number of processors; amount of RAM, speed of your I/O backplane and storage array configuration, so proper mailbox management policies
should be in place to prevent creating back-pressure situations that would affect the server's performance.
What are the limits for the Exchange store? (Windows Small Business Server 2008 Technical FAQ)
http://technet.microsoft.com/en-us/sbs/cc817589.aspx
Regarding your concern about upgrade path from SBS 2003 to SBS 2008 including Exchange server migration, please refer to below articles for more:
Migrate to Windows Small Business Server 2008 from Windows Small Business Server 2003
http://technet.microsoft.com/en-us/l.../cc546034.aspx
Windows Small Business Server 2008 Migration Help
http://www.microsoft.com/downloads/d...displaylang=en
Migrating from Windows Small Business Server 2003 to Windows Essential Business Server
http://download.microsoft.com/downlo...stallation.pdf
Setting up a second server to be a Terminal Server in SBS 2008
http://msmvps.com/blogs/bradley/arch...-sbs-2008.aspx
Hope this helps. Also, if you have any questions or concerns, please do not hesitate to let me know.
Best regards,
Robbin Meng(MSFT)
Microsoft Online Newsgroup Support
================================================== ================
Please post your SBS 2008 related questions to the SBS newsgroup on Connect website:
https://connect.microsoft.com/sbs08/...i/default.aspx
Please post your EBS related questions to the EBS newsgroup on Connect website:
https://connect.microsoft.com/ebs08/...i/default.aspx
If you want to use a newsreader other than a web forum to access these newsgroups,
please refer to the following blog to apply NNTP password and configure a newsreader:
http://msmvps.com/blogs/bradley/arch...ewsgroups.aspx
================================================== ================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
================================================== ================
This posting is provided "AS IS" with no warranties, and confers no rights.
================================================== ================