Exchange 2010 SP1 has built-in multi-tenant support, which helps service providers to host multiple organizations in a single Active Directory environment. There are few features which are available only in hosting mode and few others which are not available, compared to a normal deployment of Exchange 2010 SP1. 2010 SP1 will form part of the suite of multi-tenant capable products that will replace the Hosted Messaging and Collaboration solution.
Few points to note about installing 2010 SP1 in hosting mode:
- The installation can only be done in command line.
- You need to use /InstallWindowsComponents while running the setup to install all windows components required for Exchange.
- You need to use /Hosting switch while running the setup to install Exchange in hosting mode.
- 2010 SP1 is required.
- Exchange Management Console will not be installed.
Exchange 2010 SP1 doesn’t support the following features in Hosting mode (from Technet):
- Exchange Management Console
- Public Folders
- Unified Messaging Server role
- Business-to-Business features such as cross-premises message tracking and calendar sharing
- Outlook 2003 support (EnableLegacyOutlook)
- Edge Transport Server role
- Same forest upgrade from Exchange 2007
- Resource forest
- Parent-child domains
- Discontiguous namespace
- Disjoint namespace
In order to install Exchange 2010 SP1 in hosting mode, run the following from an elevated command prompt.
Setup.com /Roles:m,h,c /InstallWindowsComponents /Hosting /OrganizationName:
Don’t press any key as it will cancel the setup process.
Installation pre-checks are carried out.
After the pre-checks are completed successfully, setup starts installing the three roles.
As explained above, there is no EMC after the installation, only Exchange Shell & Help.