Working with Recovery Storage Groups in Exchange 2007

new-StorageGroup -Server 'SERVER' -Name 'RSG' -LogFolderPath 'C:\RSG' -SystemFolderPath 'C:\RSG' -Recovery

new-mailboxdatabase -mailboxdatabasetorecover 'obnova' -storagegroup SERVER\RSG -EDBFilePath "C:\PUVODNI\Mailbox Database.edb"

set-mailboxdatabase -identity SERVER\RSG\test -AllowFileRestore:$True

mount-database -identity SERVER\RSG\test

restore-mailbox -identity tomasm -rsgdatabase SERVER\RSG\test

zdroj:
http://www.msexchange.org/tutorials/Working-Recovery-Storage-Groups-Exchange-2007.html