hi all first step we move database path and new we add a database path but it failed second question: why use index the old database path? Summary: 1 item(s). 0 succeeded, 1 failed. Elapsed time: 00:00:03 ArchiveDB Failed Error: A source-side operation failed. Error An error occurred while performing the seed operation. Error: Failed to open a log truncation context to source server 'server'. Hresult: 0xfffffae7. Error: The database was either not found or was not replicated.. [Database: Archive, Server: server] Failed to open a log truncation context to source server server. Hresult: 0xfffffae7. Error: The database was either not found or was not replicated. Click here for help... http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.2.298.4&t=exchgf1&e=ms.exch.err.Ex4543D9 Exchange Management Shell command attempted: Add-MailboxDatabaseCopy -Identity 'ArchiveDB' -MailboxServer 'NTEX' -ActivationPreference '2' Elapsed Time: 00:00:03 Chris

First step we move database path and new we add a database path but it failed Hi Chris, Before adding a database copy to another DAG member, please run the Get-MailboxDatabaseCopyStatus to check whether there is any error message first. If there is no error, please dismount and remount the database and try it again. If possible, please create a new database and add a copy to test.Frank Wang TechNet Community Support

First step we move database path and new we add a database path but it failed Hi Chris, Before adding a database copy to another DAG member, please run the Get-MailboxDatabaseCopyStatus to check whether there is any error message first. If there is no error, please dismount and remount the database and try it again. If possible, please create a new database and add a copy to test.Frank Wang TechNet Community Support

there was a problem with one log file - We make a backup a recreate "add mailbox database copy" now it work's fineChris