After configured the Database Availability Group in my environment it failed with the following error message please see below: Suspend Comment: "The database copy was automatically suspended due to failure item processing. At '5/16/2012 12:44:15 PM' the copy of 'Mailbox Database 1984152295' on this server experienced an error that requires it be reseeded. For more detail about this failure, consult the Event log on the server for other storage and "ExchangeStoreDb" events. The passive database copy has been suspended" Failed Message: "The required log file 580258 for Mailbox Database 1984152295\Exchangeserver is missing on the active copy. If you removed the log file, please replace it. If the log file is lost, the database copy will need to be reseeded using Update-MailboxDatabaseCopy." the Event ID are 117 and 2059 i have included some screen shots of the error.