On of my customers have Exchange 2010 SP3 migrated from 2007 and 2003 and wanted to have federation with Office 365 for remote archiving purpose. More about hybrid deployments might be found on technet: http://technet.microsoft.com/en-us/library/hh945197(v=exchg.141).aspx . We have had several troubles to make it work and one of MS suggestions was to install Free/Busy folders on Hybrid (CAS / HUB servers). We have fulfilled the need by Two steps:
- Install mailbox role on CAS/HUB server
- Install Free/Busy folder by performing following actions
powershell.exe Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Setup Install-FreeBusyFolder -Verbose
After installation of Mailbox role and Free / Busy folder there is a mailbox database created on the server (As in the default installation of new mailbox server). Watch out! This database is not excluded from provisioning so new mailboxes can be created there and it doesnt have circular logging enabled. Microsoft did not mention that in doc, so I am mentioning to be safe and for my future reference.
Get-MailboxDatabase -Server Identity | Set-MailboxDatabase -CircularLoggingenabled $true -IsExcludedFromProvisioning $true Get-MailboxDatabase -Server Identity | Dismount-Database -Confirm:$false Get-MailboxDatabase -Server Identity | Mount-Database
That´s it. Your Hybrid server is prepared to be placed in production.