At '%8' the Exchange store database '%1' copy on this server encountered a serious I/O error that may have affected all copies ...

At '%8' the Exchange store database '%1' copy on this server encountered a serious I/O error that may have affected all copies of the database. For more detail about this failure, consult the Event log on the server for other "ExchangeStoreDb" or "msexchangerepl" events. All data should be immediately moved out of this database.